Definition of the 
CIDOC
object-oriented
Conceptual Reference Model

Produced by the ICOM/CIDOC
Documentation Standards Group

Editors: Nick Crofts, Ifigenia Dionissiadou, Martin Doerr, Matthew Stiff.

September 1999

Copyright © 1998,1999 ICOM/CIDOC Documentation Standards Group

Definition of the CIDOC object-oriented Conceptual Reference Model

Editors:	Martin Doerr,
ICS-FORTH,
Heraklion-Crete	Ifigenia Dionissiadu
Benaki Museum,
Athens	 Nick Crofts
City of Geneva,
Geneva	Matthew Stiff
MDA
Cambridge	

Creation Date   : 11-07-1998
Last Modified   : 01-11-1999

Comments:	Cross references controlled by SIS database.	
	Corrections added following Nick’s comments on 25/01/99 , Martin Doerr	
	Scope Notes from Nick’s hierarchies merged in, 21/6/99, Martin Doerr	
	Scope Notes edited in Geneva meeting, 13-15/7/1999, Martin Doerr, I. Dionissiadu, Nick Crofts, Matthew Stiff	
	Proof reading, inherited references added, comments to IC hidden, 25/8/99, by Martin Doerr.	
	Introduction proofed and examples added by Nick Crofts 4/9/99	

Acknowledgements

The successful completion of this project was made possible through the combined efforts over several years of members of the CIDOC Documentation Standards Group: 
Project Chairs: 
Nick Crofts (CH), co-chair
Pat Reed (USA), co-chair 

Project Team: 
Costis Dallas (GR) 
Ifigenia Dionissiadou (GR)
Martin Doerr (GR)
Siegfried Krause (Germany)
Per Enggaard Pedersen (DK)
Lene Rold (DK)
Anne Serio (USA) 
Matthew Stiff (UK)

The group wishes to thank in particular Dr Martin Doerr and ICS-FORTH for both providing facilities for meetings on several occasions and for the use of SIS as a repository for the model. 
Printing and distribution of the model during the 1998 Melbourne conference were funded by CIDOC.

Introduction

This document is a formal definition of the oo CIDOC Conceptual Reference Model (referred to in the following as the “CRM”). It is the result of work done by the CIDOC Documentation Standards Group, from 1994 1999, as the result of an initiative to define the underlying semantics of database schemata and document structures needed in museum documentation for the support of good practice, document structure generation, and the mediation of heterogeneous sources.

The CRM is a domain ontology in the sense used in computer science. As such, the model is designed to be explanatory and extensible rather than prescriptive and restrictive. Currently, no specific formalism for semantic models has been widely accepted as standard, nevertheless the semantic deviations between the various available models are minimal. Consequently, the model has been formulated as an object-oriented semantic model, which can easily be converted into other object-oriented models. It is our intention that this presentation format should be both natural and expressive for domain experts, and easily converted to other machine readable formats such as RDF and XML. Considerable effort has gone into achieving these goals, all cross-references and inheritance of properties, for example, are explicitly resolved. This has led to a high degree of redundancy, but makes the document more comprehensible to naοve readers and useable as a reference document, which does not require the use of electronic tools.

The CRM is intended to cover all concepts relevant to museum documentation, but most particularly those needed for wide area data exchange. Due to the diversity of museum subjects, this goal can ultimately be achieved only by extensions to the model. In its current form, the scope of the CRM is limited to the concepts referred to in the CIDOC Information Groups and Categories, a widely accepted reference for the administration of material cultural heritage and other objects in museums. However, due to its object-oriented nature, the model comprises a backbone of powerful general concepts, which have a much wider area of application.

Of necessity, some concepts are less thoroughly elaborated than others:  “Actor”, “Right” and “Conceptual Object”, for example. This is a natural consequence of focussing on specific functionality in an intrinsically unlimited field. These ‘undeveloped’ concepts can be considered as hook-in points for extensions compatible with the model. However, even without these extensions, the CRM is nevertheless ‘complete’ in that, through the use of free text fields, it allows information to be captured which is not modelled explicitly. Indeed, some information has deliberately not been developed into formal properties or links. This approach is preferable when detailed, targeted queries are not expected: a good text description , a drawing or diagram provides a better source of information. In general, only those concepts on which formal querying is required need to be made explicit - rather than all the information which needs to be stored and retrieved.
Applied form

From the various terminologies in use for object-oriented models, we have selected the
following for ease of understanding by non-computer experts:

“Entity” for anything that may be called “class”, “entity” or “node”.
“links” for anything that may be called “attribute”, “reference”, “link”, or “property”.
“Superclass  - Subclass” relations refer to “isA” relations, “subclass – superclass”, “ parent class - derived class”, “generalization - specialization”, etc. 

Cardinality constraints are deliberately omitted as they are considered to be implementation details with only minimal explanatory value. By default, all links (or properties) are regarded as optional, and potentially multiple. For example, several persons together may transfer ownership of a set of objects in one legal act to another group of persons. Alternatively, ownership may be acquired from nobody, but by collection. (See entity E8).

Links are strictly inherited to subclasses (entities again). This applies symmetrically to both entities to the connecting link. Any instance of a subclass can instantiate inherited links, and any instance link can reference a subclass of an entity to which it points.

Links may themselves have links, which point to other entities. Typically, these links are used for dynamically modified links such as roles.

The CRM is formulated in reference to a metamodel, such as that supported by TELOS. “Metaclasses” form sets of entities, typically used to handle lists of entities that form one subclass hierarchy. “Metacategories”, which are like links between metaclasses, group links by related meaning. For the current purposes of the model, references to the metamodel can simply be regarded as comments to assist reading.

We have applied the following naming rules:

•	Entities are named using initial capitals.
•	Entities are named using noun phrases (nominal groups)
•	Links are named using lower case letters and are labelled in both directions.
•	The direction of links, and hence their names, are in accordance with the following priority list: 
•	Events
•	Objects
•	Actors
•	Other
•	link names are to be read from left to right and, in brackets, from right to left. Implementers can choose the appropriate name according to the orientation of their link attachment.
•	Links are named using verbal phrases. References to states are named in present tense, whereas actions are named in past tense.

Examples

fig. 1 reasoning about spatial information

The diagram above shows a partial view of the CRM representing spatial information. Five of the main hierarchy branches are included in this view: Actor, Contact Point, Appellation, Place, and Physical Entity. The relationships between these main classes and their subclasses are shown as branching lines. Links between classes are shown as green ovals. A ‘shortcut’ link is included in this view: has section (is located on or within) between Place and Physical Object. In some cases the order of priority for link names has been modified in order to facilitate reading the model from left to right.
As can be seen, a Place is identified by a Place Appellation, which may be an Address, Spatial Coordinates, a Place Name, or a Section Definition such as ‘basement’, ‘prow’, or ‘lower left-hand corner’. A Place may consist of or form part of another place, thereby allowing a hierarchy of physical ‘containers’ to be constructed. 
An Address can be considered both as a Place Appellation – a way of referring to a place – and as a Contact Point for an Actor. An Actor may have any number of Contact Points. 
An interesting aspect of the model is the defines section link between section definition and physical object, (and the corresponding shortcut from place to physical object). This effectively means that a section of a physical object may be the reference for a place. We may know, for example that Nelson died on a particular spot on the Victory, without being able to locate the exact position of the vessel in geospatial terms. Similarly, a signature or inscription can be located 'on the lower right hand corner' of a painting, regardless of where the painting is hanging.

fig. 2 reasoning about temporal information

This second example shows how the model handles temporal information. Four of the main hierarchy branches are included in this view: Temporal Entity, Time-Span, Appellation and Place. The Temporal Entity class serves to group together all classes which have a temporal component, such as historical Periods, Events and Condition States. Typically, Periods and Events are identified by a name or Period Appellation. A Time Span is simply a temporal interval which does not make any reference to cultural or geographical contexts, unlike Periods, which take place at a particular Place. Time Spans are sometimes named, generally by reference to Dates. Time Appellations differ from Period Appellations in that one refers to a Period within a geo-cultural context while the other is purely temporal - a distinction which is often hard to recognise in natural language. Both Time-Span and Period have consists of and falls within reflexive links. Both of these allow part-whole hierarchies to be constructed. The distinction between the two types of link is that in first case the whole is thought to be composed of or defined by its parts whereas in the second the relationship is merely contingent. An example might be a period of national celebration, which could be said to be composed of the individual events, whereas the construction of a building might simply fall within the period of a particular government. 
The Entity List
The following is the list of all entities and links contained in the model. It consists of an index and the entity declarations themselves. The list is ordered by herarichic level, in a “depth first” manner, from the smaller to the larger subhierarchies, and alphabetically between equal siblings. From this sequence, a unique identifier for each entity emerges, which facilitates cross-referencing.

Entity declarations use the following format:
•	Entity names (terms) are presented as headings in bold face, preceded by the unique identifier.
•	The line “Belongs to:” refers to the metaclass the entity is a member of.
•	The line “Subclass of:” declares the superclass of the entity, from which it inherits links.
•	The line “Superclass of:” is a cross-reference to the following subclasses of this entity.
•	The line “Scope note” contains the textual definition of the concept the entity represents.
•	The title “Properties” announces the list of links.
•	Links are grouped by related meaning under metacategories, i.e. a series of titles. e.g. “classifications” etc., in normal face.
•	Each link is represented by its forward and backward name, and the entity it links to, separated by colon.
•	Links declared directly for the entity are given in bold face.
•	Inherited links are given in italics as cross-references to the respective superclasses, for better comprehension. 
•	Inherited links with a redefined (restricted ) target entity are given in bold face italics.
•	Each link may be followed by a scope note for the link in an indented text in smaller characters.
•	Links of links are given in an indented position in parenthesis under the respective link.
•	The title “The entity is referenced by:” indicates the cross-reference list of links pointing to this entity (in the sequence called “incoming links”). In cases where there is no such link, the phrase “The entity is not referenced” is used.
•	Each incoming link is represented by the entity it originates from, and its forward and backward name, separated by a colon, in normal face.
•	The title “The entity inherits references:” indicates the cross-reference list of links pointing to any of the superclasses of this entity (“inherited incoming links”).
•	Each inherited incoming link is represented by the entity it originates from, and its forward and backward name, separated by a colon, in italics.

Index of the entities of the CIDOC CRM presented as a monohierarchy :

E1   CIDOC Entity
E2    -  Temporal Entity
E3    -   -  Condition State
E4    -   -  Period
E5    -   -   -  Event
E6    -   -   -   -  Destruction
E7    -   -   -   -  Activity
E8    -   -   -   -   -  Acquisition
E9    -   -   -   -   -  Move
E10  -   -   -   -   -  Transfer of Custody
E11  -   -   -   -   -  Modification
E12  -   -   -   -   -   -  Production
E13  -   -   -   -   -  Attribute Assignment
E14  -   -   -   -   -   -  Condition Assessment
E15  -   -   -   -   -   -  Identifier Assignment
E16  -   -   -   -   -   -  Measurement
E17  -   -   -   -   -   -  Type Assignment
E18  -  Physical Entity
E19  -   -  Physical Object
E20  -   -   -  Biological Object
E21  -   -   -   -  Person
E22  -   -   -  Man-Made Object
E23  -   -   -   -  Iconographic Object
E24  -   -  Man-Made Entity
E22  -   -   -  Man-Made Object
E23  -   -   -   -  Iconographic Object
E25  -   -   -  Man-Made Feature
E26  -   -  Physical Feature
E27  -   -   -  Site
E25  -   -   -  Man-Made Feature
E28  -  Conceptual Object
E29  -   -  Design or Procedure
E30  -   -  Right
E31  -   -  Document
E32  -   -   -   Authority Document
E33  -   -  Linguistic Object
E34  -   -   -  Inscription
E35  -   -   -  Title
E36  -   -  Visual Item
E37  -   -   -  Mark
E34  -   -   -   -  Inscription
E38  -   -   -  Image
E23  -   -  Iconographic Object
E39  -  Actor
E40  -   -  Legal Body
E21 -   -  Person
E41  -  Appellation
E42  -   -  Object Identifier
E43  -   -  Period Appellation
E44  -   -  Place Appellation
E45  -   -   -  Address
E46  -   -   -  Section Definition
E47  -   -   -  Spatial Coordinates
E48  -   -   -  Place Name
E49  -   -  Time Appellation
E50  -   -   -  Date
E35  -   -  Title
E51  -  Contact Point
E45  -  -  Address
E52  -  Time-Span
E53  -  Place
E54  -  Dimension
E55 Type
E56  -  Language
E57  -  Material
E58  -  Measurement Unit
E59  Primitive value
E60  -  Number
E61  -  Time Primitive
E62  -  String
E1 CIDOC Entity

Belongs to:  	MetaEntity
Superclass of:	Temporal Entity
Physical Entity
Conceptual Object
Actor
Appellation
Contact Point
Time-Span
Place
Dimension

Scope note:	This is the abstract concept of the entities of our universe of discourse. It carries the rule that all entities can be classified by a type, which further refines the specific subclass an instance belongs to, and a free text field for anything we want to express and that is not captured by formal links.

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Type Assignment: classified (was classified by) 

Period Hierarchy
All entities in this hierarchy are instances of the metaclass “Period_Type”, which is the container for all these entities.
E2 Temporal Entity

Belongs to:    	Period_Type
Subclass of:   	CIDOC Entity
Superclass of: 	Condition State
                      	Period

Scope note:	This is an abstract entity and has no examples. It groups together things such as events, states and other phenomena which are limited in time. It is specialized into Period, which holds on some geographic area, and Condition State, which holds for, on, or over a certain object.

Properties:

classifications
    has type (is type of): Type
temporal definitions
    has time-span (is time-span of): Time-Span
structures
other descriptions
    has note: String
The entity is not referenced. 
The entity inherits references :
Type Assignment: classified (was classified by)
E3 Condition State

Belongs to:    	Period_Type
Subclass of:   	Temporal Entity

Scope note:	The state of an object characterized by a certain condition and a time-span, e.g. "In ruins from 1695 until 1952", where the qualifier "in ruins" is represented as the condition state type.
Properties:

classifications
    has type (is type of): Type
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Condition State
    falls within (contains): Condition State
other descriptions
    has note: String
The entity is referenced by:
Condition Assessment: has identified (identified by)
Physical Entity: has condition (condition of)
The entity inherits references :
Type Assignment: classified (was classified by)
E4 Period

Belongs to:    	Period_Type
Subclass of:   	Temporal Entity
Superclass of: 	Event
 
Scope note:	A period is characterized by a coherent set of phenomena and or manifestations (explicitly intended or not), which are assumed to have taken place over a certain space and time.

Examples: Glacial period, bronze period, Ming Dynasty, Impressionism, Neolithic Period, Mc Carthy Era, The Sixties, Niniveh, 'Sturm und Drang'.

There are different opinions as to whether a ‘style’ is defined by physical features or by the historical context. 

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is referenced only by itself.
The entity inherits references :
Type Assignment: classified (was classified by)
E5 Event

Belongs to: 	Period_Type
Subclass of:   	Period
Superclass of: 	Destruction
Activity

Scope note:	A change of state in cultural, social, physical systems, regardless of scale, brought about by a series or group of coherent physical, cultural, technological or legal phenomena.

Examples : World War II, Battle of Stalingrad, Earthquake in Lisbon, birth of Cleopatra, my birthday celebration 28-6-1995, the Yal ta Conference, "a tile fell from my roof", the CIDOC Conference 2005.

The distinction between and event and a period is partly a question of scale. Viewed at a broad scale, an event is an ‘instantaneous’ change of state. At a fine scale, the event can be analysed into its component phenomena within a space and time frame, i.e., a period. The reverse is not necessarily the case, not all periods give rise to a noteworthy change of state. 

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is referenced by:
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Type Assignment: classified (was classified by)
E6 Destruction

Belongs to:    	Period_Type
Subclass of:   	Event

Scope note:	An event which causes one or more objects to lose their identity as the current subjects of documentation.  Some destructions are intentional, others are independent of human activity. The decision as to the point at which an object is destroyed rather than modified may be arbitrary in some cases. The same event may, in some cases, be documented both as a destruction of one or more objects and as the creation of others using parts or material from the original, or, alternatively, as a modification.  In the former case, the object record would close, in the latter, it would continue. 

For living beings, death is usually more clearly defined. 

Examples: The Lisbon Earthquake, the destruction of Nineveh, “I broke a champagne glass yesterday”, the shooting of the last wolf in Germany in 1729.

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
passive participants
    destroyed (was destroyed by): Physical Object
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)

E7 Activity

Belongs to:    	Period_Type
Subclass of:   	Event
Superclass of: 	Acquisition
Move
Transfer of Custody
Modification
Attribute Assignment

Scope note:	An action or a series of actions, carried out by actors (people, groups or organisations) which follow a certain explicit or implicit intention and result as a collective effect in some change of state in the cultural, social, physical systems we are interested in. This notion includes both complex and long lasting actions such as the building of a settlement, or a war, as well as simple, short-lived actions such as the opening of a door. It does not include the notion of activity in the sense of professions and other non-targeted notions. These are seen rather as belonging to a part in the hierarchy above Event.

Properties:
identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
          (in the role of : Type)
passive participants
    used object (was used for): Physical Object
          (mode of use: String)
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
falls within (contains): Period
other descriptions
    has note: String

The entity is referenced only by itself.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)

E8 Acquisition

Belongs to:    	Period_Type
Subclass of:   	Activity

Scope note:	This entity describes the transfer of the legal ownership from one legal person to another. Either one of the actors may be omitted, unknown or not existing. The entity describes the beginning, the end or the transfer of an ownership, acquisition from unknown source or loss of title, depending on the circumstances. It takes a neutral position with respect to the actors involved. The museum notion of "accession" seems to differ between institutions. We preferred therefore to model the notions of legal ownership and physical custody instead, which are well defined in international business. Institutions can choose to model their specific notions as combinations of these.

Annexation, donation, purchase, field collection - where legal title is appropriated by the collector, are types of acquisition. Examples: a fish collected in international waters, a painting bequeathed to a museum. 

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    transferred title to (acquired title of): Actor 
   transferred title from (surrendered title of): Actor
carried out by (performed): Actor
(in the role of : Type)
passive participants
    transferred title of (changed ownership by): Physical Object
    used object (was used for): Physical Object
          (mode of use: String)
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)

E9 Move

Belongs to:    	Period_Type
Subclass of:   	Activity

Scope note:	This entity captures the change of physical location of a museum object for exhibitions, conservation, reorganization, loans, study etc.

	e.g. Taking objects from storage and putting them on display is a type of move.

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
          (in the role of : Type)
passive participants
    moved (moved by): Physical Object
    used object (was used for): Physical Object
          (mode of use: String)
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    moved to (occupied): Place
    moved from (vacated): Place
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)

E10 Transfer of Custody

Belongs to:    	Period_Type
Subclass of:   	Activity

Scope note:	This entity describes the transfer of physical custody from one legal person to another. Either one of the actors may be omitted, unknown or not existing. The entity may describe the beginning, the end or the transfer of custody, field collection or declared loss of an object, depending on the circumstances. It takes a neutral position with respect to the actors involved. 

The distinction between legal and physical custody can be modelled as types.

Some events can simultaneously be considered as acquisition, transfer of custody and move. For example, purchase of a Polynesian feather hat at a market. In other cases, separate events are involved, e.g. purchase by telephone of an object on auction, physical transportation, and reception by the new owner.
Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    custody surrendered by (surrendered custody): Actor
    custody received by (received custody): Actor
carried out by (performed): Actor
(in the role of : Type)
passive participants
     transferred custody of (custody changed by): Physical Object
    used object (was used for): Physical Object
          (mode of use: String)
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span

structures
     consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
E11 Modification

Belongs to:    	Period_Type
Subclass of:   	Activity
Superclass of: 	Production

Scope note:	This entity comprises all activities which intentionally alter physical objects, regardless of the degree of intervention: creation of some item from raw material, restorations, use of ancient objects in jewelry, etc.. Since many cases the distinction between modification and creation is not clear, and the actions implied are basically the same, modification is regarded as the more general (and less ambiguous) concept. This implies that some items may be consumed or destroyed in a modification process, and others emerge from it. Typically, objects involved in the process, such as tools, materials, etc., which are foreseen by the applied technique are modeled as attributes of the Design or Procedure, for reasons of efficient data representation. Nevertheless, unusual and remarkable items used for a specific instance of a process should be referred to here. 

This entity is thought to be collective, e.g. the printing of a thousand books should be one event. Conservation actions can be modeled as a type of modification. 

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
          (in the role of : Type)
passive participants
     has produced (was produced by): Man-Made Entity
    used object (was used for): Physical Object
          (mode of use: String)
following
    used general technique (was technique of): Type
    used specific technique (was used by): Design or Procedure
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
E12 Production

Belongs to:    	Period_Type
Subclass of:   	Modification

Scope note:	This entity specializes the notion of modification into production, i.e. activities which are designed to and succeed in creating one or a series of new items, new in the sense that there is no obvious similarity to the consumed items and material. Examples: painting a watercolour, printing an etching, producing a series of household forks, the recasting of the mermaid in Copenhagen.
Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
(in the role of : Type)
passive participants
    has produced (was produced by): Man-Made Entity
    used object (was used for): Physical Object
          (mode of use: String)
following
    used general technique (was technique of) : Type
used specific technique (was used by): Design or Procedure
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
     consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String
The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
E13 Attribute Assignment

Belongs to:    	Period_Type
Subclass of:   	Activity
Superclass of: 	Condition Assessment
Identifier Assignment
Measurement
Type Assignment

Scope note:	This entity comprises the actions of making assertions about properties of an object. It serves the documentation of how the respective assessment came about, and whose opinion it was. All the attributes or properties assigned in such an action can also be seen as directly attached to the respective object,  possibly as a collection of contradictory values. All cases of direct links from objects to values which are, in this model, also referred to indirectly through an action, are characterized as "short cuts" of this action. This redundant modeling of two alternative views is preferred because many implementations may have good reasons to model either the action or the short cut, and the relation between both alternatives can be captured by simple rules. 

In addition, the entity describes the actions of people making propositions and statements during certain museum procedures, e.g. the person and date when a condition statement was made, an identifier was assigned, the museum object was measured, etc.. Which kinds of such assignments and statements need to be documented explicitly in schema structures rather than free text, depends on a museum’s practice. In the latter case shortcuts may be used which refer directly to the museum object. 
Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
(in the role of : Type)
passive participants
    used object (was used for): Physical Object
          (mode of use: String)
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
     consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String
The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
E14 Condition Assessment

Belongs to:    	Period_Type
Subclass of:   	Attribute Assignment

Scope note:	This entity describes the action of assessing the condition of preservation of an object over a particular period, either by inspection, measurement or historical studies.

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
          (in the role of : Type)
passive participants
    concerns (assessed by): Physical Object
    used object (was used for): Physical Object
          (mode of use: String)
attributions
    has identified (identified by): Condition State
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
E15 Identifier Assignment

Belongs to:    	Period_Type
Subclass of:   	Attribute Assignment

Scope note:	This entity describes the action of assigning an identifier, such as a museum number, to an object. The interest in this action arises when objects are exchanged, and multiple identifiers are used, or the identification system of an organization is changed. In order to cover these cases, it is important to document by whom, when and for what purpose an identifier is assigned to a museum object.

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
          (in the role of : Type)
passive participants
    registers (registered by): Physical Object
    used object (was used for): Physical Object
          (mode of use: String)
attributions
    assigns (is assigned by): Object Identifier
    deassigns (is deassigned by): Object Identifier
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
E16 Measurement

Belongs to:    	Period_Type
Subclass of:   	Attribute Assignment

Scope note:	This entity describes actions of measuring physical properties by counting or use of some tool, whether by simple yardstick or complex radiation detection device. The interest is in the method and care applied, in order to decide afterwards on the reliability of the result. For properties which may change value over time, such as length, due to shrinkage, the date is of direct relevance as well. Details of methods and devices are best handled as free text, whereas basic methods such as "C14" should be encoded in the type field.

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
          (in the role of : Type)
passive participants
    measured (was measured): Physical Object
used object (was used for): Physical Object
          (mode of use: String)
attributions
    observed dimension (was observed): Dimension
motivations
....was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
E17 Type Assignment

Belongs to:    	Period_Type
Subclass of:   	Attribute Assignment

Scope note:	This entity describes the act of scientifically classifying some entity, an object, a work, an action or whatever. The value of classification depends critically on general and personal knowledge and the scientific system used. Therefore the interest lies in the author and date.

Properties:

identifications
    is called (identifies): Period Appellation
classifications
    has type (is type of): Type
active participants
    carried out by (performed): Actor
(in the role of : Type)
passive participants
    classified (was classified by): CIDOC Entity
    used object (was used for): Physical Object
          (mode of use: String)
attributions
    assigned (was assigned by): Type
motivations
    was intended use of (was made for): Man-Made Object
           (mode of use: String)
    had specific purpose (was purpose of): Activity
    had as general purpose (was purpose of): Type
spatial definitions
    took place at (witnessed): Place
spatial definitions, short cut
    took place on or within (witnessed): Physical Object
temporal definitions
    has time-span (is time-span of): Time-Span
structures
    consists of (forms part of): Period
    falls within (contains): Period
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Period : consists of (forms part of)
Period : falls within (contains)
Activity: had specific purpose (was purpose of)
Type Assignment: classified (was classified by)
Man-Made Entity: depicts event (is depicted by)
          (mode of depiction  : Type)
 Object Hierarchy

All entities in this hierarchy are instances of the metaclass “Object_Type”. Two submetaclasses are defined, the “Physical_Object_Type” for the hierarchy of the “Physical Objects”, the kinds of things which have weight, are created once and can be destroyed, and the “Concept_Type” for the  “Concepts”, the intellectual or other products which are created once, and can exist on multiple carriers, and hence can rather be forgotten or lost than destroyed.

Physical Objects:
E18 Physical Entity

Belongs to:    	Physical_Object_Type
Subclass of:   	CIDOC Entity
Superclass of: 	Physical Object
Man-Made Entity
Physical Feature

Scope Note:	Physical entity is an abstract notion that groups all physical objects, man made and natural, as well as physical features of objects, such as holes. We use the term 'feature' to refer to anything of a material nature, such as scratches, holes, rivers, and stains, which it would be strange to refer to as ‘objects’.

Properties:

classifications
    has type (is type of): Type
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
structures
   consists of (is incorporated in): Material
other descriptions
    has note: String
The entity is referenced by:
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)
The entity inherits references :
Type Assignment: classified (was classified by)
E19 Physical Object

Belongs to:    	Physical_Object_Type
Subclass of:   	Physical Entity
Superclass of: 	Biological Object
Man-Made Object

Scope note:	An discrete, real item of material nature which constitutes a unit for documentation. The decision as to what constitutes a complete item, rather than parts or components, may be purely administrative.

Examples : John Smith, Aphrodite of Milos, the Palace of Knossos, the Cullinan diamond, Apollo 13 a the time of launch.

Properties:

identifications, short cut
    is identified by (identifies): Object Identifier
identifications
    has title (is title of): Title
(has type : Type) 
    preferred identifier is (is preferred identifier of): Object Identifier
classifications
    has type (is type of): Type
legal status
    is subject to (applies to): Right
legal status, short cut
    right held by (owns rights to): Actor
             (has type: Type)
             (has note: String)
    has former/current keeper (is former/current keeper of) : Actor
    has current keeper (is former/current keeper of) : Actor
    has former/current owner (is former/current owner of): Actor
    has current owner (is current owner of): Actor
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
locations,  short cut
    has former/current location (is former/current location of) : Place
    has current permanent location (is current permanent location of): Place
    has current location (currently holds) : Place
structures
    bears feature (is found on): Physical Feature
    has number of parts: Number
    is composed of (forms part of): Physical Object
    has section definition (defines section): Section Definition
    consists of (is incorporated in): Material
structures, short cut
    has section (is located on or within): Place
other descriptions
     had as general use (was use of): Type
    has note: String
The entity is referenced by:
Period: took place on or within (witnessed)
Destruction: destroyed (was destroyed by)
Activity: used object (was used for)
            (mode of use: String)
Acquisition: transferred title of (changed ownership by)
Move: moved (moved by)
Transfer of Custody: transferred custody of (custody changed by)
Condition Assessment: concerns (assessed by)
Identifier Assignment: registers (registered by)
Measurement: measured (was measured)
Physical Object: is composed of (forms part of) 
Document: refers to (is referred to by)
The entity inherits references :
Type Assignment: classified (was classified by)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)

E20 Biological Object

Belongs to:    	Physical_Object_Type
Subclass of:   	Physical Object
Superclass of: 	Person

Scope note:	An individual, real item of material nature, which lives, has lived, or is a natural products of living organisms. Artificial objects which incorporate biological elements, such as Victorian butterfly frames, can be classified as both natural and man-made objects. 

Examples : Me, Tut-Ankh-Amun, Boukephalas. 

Properties:
identifications, short cut
    is identified by (identifies): Object Identifier
identifications
    has title (is title of): Title
          (has type : Type)
preferred identifier is (is preferred identifier of): Object Identifier
classifications
    has type (is type of): Type
legal status
    is subject to (applies to): Right
legal status, short cut
    right held by (owns rights to): Actor
             (has type: Type)
             (has note: String)
    has former/current keeper (is former/current keeper of) : Actor
    has current keeper (is former/current keeper of) : Actor
    has former/current owner (is former/current owner of): Actor
    has current owner (is current owner of): Actor
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
locations, short cut
    has former/current location (is former/current location of) : Place
    has current permanent location (is current permanent location of): Place
    has current location (currently holds) : Place
structures
    bears feature (is found on): Physical Feature
    has number of parts:Number
    is composed of (forms part of): Physical Object
    has section definition (defines section): Section Definition
    consists of (is incorporated in): Material
structures, short cut
    has section (is located on or within): Place
other descriptions
     had as general use (was use of): Type
    has note: String

The entity is not referenced.
The entity inherits references :
Period: took place on or within (witnessed)
Destruction: destroyed (was destroyed by)
Activity: used object (was used for)
            (mode of use: String)
Acquisition: transferred title of (changed ownership by)
Move: moved (moved by)
Transfer of Custody: transferred custody of (custody changed by)
Condition Assessment: concerns (assessed by)
Identifier Assignment: registers (registered by)
Measurement: measured (was measured)
Type Assignment: classified (was classified by)
Physical Object: is composed of (forms part of)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)
Document: refers to (is referred to by)
E21 Person

Belongs to:    	Actor_Type
Physical_Object_Type
Subclass of:   	Biological Object
Actor

Scope note:	A real person, who lives or is assumed to have lived. 

Examples : John Smith, Tut-Ankh-Amun.

Legendary figures, such as Ulysses and King Arthur, who may have existed, fall into this class if the documentation refers to them as historical figures. In cases where doubt exists as to whether several persons are in fact identical, multiple instances can be created and linked to indicate their relationship.
Properties:

identifications, short cut
    is identified by (identifies): Object Identifier
identifications
    has title (is title of): Title
	(has type : Type)
preferred identifier is (is preferred identifier of): Object Identifier
classifications
    has type (is type of): Type
legal status
    is subject to (applies to): Right
legal status, short cut
    right held by (owns rights to): Actor
             (has type: Type)
             (has note: String)
    has former/current keeper (is former/current keeper of) : Actor
    has current keeper (is former/current keeper of) : Actor
    has former/current owner (is former/current owner of): Actor
    has current owner (is current owner of): Actor
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
locations, short cut
    has former/current location (is former/current location of) : Place
    has current permanent location (is current permanent location of): Place
    has current location (currently holds) : Place
structures
    bears feature (is found on): Physical Feature
    has number of parts: Number
    is composed of (forms part of): Physical Object
    has section definition (defines section): Section Definition
    consists of (is incorporated in): Material
structures, short cut
    has section (is located on or within): Place
other descriptions
    is member of (has members): Legal Body
    had as general use (was use of): Type
    possesses (is possessed by): Right
    has contact points (provides access to): Contact Point
    has note: String
    
The entity is not referenced.
The entity inherits references :
Period: took place on or within (witnessed)
Destruction: destroyed (was destroyed by)
Activity: used object (was used for)
            (mode of use: String)
Activity: carried out by (performed)
          (in the role of : Type)
Acquisition: transferred title of (changed ownership by)
Acquisition: transferred title to (acquired title of)
Acquisition: transferred title from (surrendered title of)
Move: moved (moved by)
Transfer of Custody: transferred custody of (custody changed by)
Transfer of Custody: custody surrendered by (surrendered custody)
Transfer of Custody: custody received by (received custody)
Condition Assessment: concerns (assessed by)
Identifier Assignment: registers (registered by)
Measurement: measured (was measured)
Type Assignment: classified (was classified by)
Physical Object: is composed of (forms part of)
Physical Object: right held by (owns rights to)
	(has type : Type)
	(has note : String)
Physical Object: has former/current keeper (is former/current keeper of) 
Physical Object: has current keeper (is former/current keeper of) 
Physical Object: has former/current owner (is former/current owner of)
Physical Object: has current owner (is current owner of)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)
Document: refers to (is referred to by)

E22 Man-Made Object

Belongs to:    	Physical_Object_Type
Subclass of:   	Physical Object
		Man-Made Entity
Superclass of: 	Iconographic Object

Scope note:	An discrete real item of material nature, which is an artifact of technological actions.

Example : My car, chassis no. AMT-9566-XXX9384,
                  The Portland Vase,
	The Colloseum, The Parthenon.

Properties:

identifications, short cut
    is identified by (identifies): Object Identifier
identifications
    has title (is title of): Title
          (has type : Type)
    preferred identifier is (is preferred identifier of): Object Identifier
classifications
    has type (is type of): Type
legal status
    is subject to (applies to): Right
legal status, short cut
    right held by (owns rights to): Actor
             (has type: Type)
             (has note: String)
    has former/current keeper (is former/current keeper of) : Actor
    has current keeper (is former/current keeper of) : Actor
    has former/current owner (is former/current owner of): Actor
    has current owner (is current owner of): Actor
intellectual contents
    depicts concept (is depicted by): Type
          (mode of depiction : Type)
    depicts event (is depicted by): Event
          (mode of depiction  : Type)
    depicts object (is depicted by): Physical Entity
         (mode of depiction : Type)
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
locations, short cut
    has former/current location (is former/current location of) : Place
    has current permanent location (is current permanent location of): Place
    has current location (currently holds) : Place
structures
    bears feature (is found on): Physical Feature
    has number of parts:Number
    is composed of (forms part of): Physical Object
    shows visual item (is shown by): Visual Item
    has section definition (defines section): Section Definition
    consists of (is incorporated in): Material
structures, short cut
    has section (is located on or within): Place
other descriptions
     was intended for (was intention of): Type
     had as general use (was use of): Type
    has note: String

The entity is referenced by:
Activity: was intended use of  (was made for)
            (mode of use: String)
The entity inherits references :
Period: took place on or within (witnessed)
Destruction: destroyed (was destroyed by)
Activity: used object (was used for)
            (mode of use: String)
Acquisition: transferred title of (changed ownership by)
Move: moved (moved by)
Transfer of Custody: transferred custody of (custody changed by)
Modification: has produced (was produced by)
Condition Assessment: concerns (assessed by)
Identifier Assignment: registers (registered by)
Measurement: measured (was measured)
Type Assignment: classified (was classified by)
Physical Object: is composed of (forms part of)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)
Document: refers to (is referred to by)
E23 Iconographic Object
(former E22, former E24)

Belongs to:    	Physical_Object_Type
Subclass of:   	Man-Made Object
Conceptual Object

Scope note:	This entity comprises objects which are designed primarily or in addition to another functionality to represent or depict something in an optical manner, be it concrete or abstract. Examples: Paintings, Sculpture, a vase in form of a head, a decoration on a medieval gun. 

This entity has a certain pragmatic value in the fine arts since it conveniently groups together objects such as paintings, drawings, watercolours and other similar objects. From a philosophical point of view, representation is an 'intentional' act. Natural objects may resemble other objects by chance but they can represent only as a result of intervention by some fairly sophisticated semiotic arrangements.

Properties:

identifications, short cut
    is identified by (identifies): Object Identifier
identifications
    has title (is title of): Title
          (has type : Type)
    preferred identifier is (is preferred identifier of): Object Identifier
classifications
    has type (is type of): Type
legal status
    is subject to (applies to): Right
legal status, short cut
    right held by (owns rights to): Actor
             (has type: Type)
             (has note: String)
    has former/current keeper (is former/current keeper of) : Actor
    has current keeper (is former/current keeper of) : Actor
    has former/current owner (is former/current owner of): Actor
    has current owner (is current owner of): Actor
intellectual contents
    depicts concept (is depicted by): Type
          (mode of depiction : Type)
    depicts event (is depicted by): Event
          (mode of depiction  : Type)
    depicts object (is depicted by): Physical Entity
         (mode of depiction : Type)
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
locations, short cut
    has former/current location (is former/current location of) : Place
    has current permanent location (is current permanent location of): Place
    has current location (currently holds) : Place
structures
    bears feature (is found on): Physical Feature
    has number of parts:Number
    shows visual item (is shown by): Visual Item
    is composed of (forms part of): Physical Object
    has section definition (defines section): Section Definition
    consists of (is incorporated in): Material
structures, short cut
    has section (is located on or within): Place
other descriptions
     was intended for (was intention of): Type
     had as general use (was use of): Type
    has note: String
    has note: String

The entity is not referenced.
The entity inherits references :
Period: took place on or within (witnessed)
Destruction: destroyed (was destroyed by)
Activity: used object (was used for)
            (mode of use: String)
Activity: was intended use of  (was made for)
            (mode of use: String)
Acquisition: transferred title of (changed ownership by)
Move: moved (moved by)
Transfer of Custody: transferred custody of (custody changed by)
Modification: has produced (was produced by)
Condition Assessment: concerns (assessed by)
Identifier Assignment: registers (registered by)
Measurement: measured (was measured)
Type Assignment: classified (was classified by)
Physical Object: is composed of (forms part of)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)
Document: refers to (is referred to by)
E24 Man-Made Entity

Belongs to:    	Physical_Object_Type
Subclass of:   	Physical Entity
Superclass of: 	Man-Made Object
Man-Made Feature

Scope Note:	Man-made entity is a general class that groups man made objects and features. The distinction between 'objects' and 'features' is useful since it avoids referring to things like holes and texture as objects. Features and objects share many common characteristics however, hence the need for a general class of man-made things.

Properties:

classifications
    has type (is type of): Type
intellectual contents
    depicts object (is depicted by): Physical Entity
          (mode of depiction : Type)
    depicts event (is depicted by): Event
(mode of depiction  : Type)
    depicts concept (is depicted by): Type
(mode of depiction : Type)
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
structures
    shows visual item (is shown by): Visual Item
    consists of (is incorporated in): Material
other descriptions
    has note: String
The entity is referenced by:
Modification: has produced (was produced by)
The entity inherits references :
Type Assignment: classified (was classified by)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)
E25 Man-Made Feature

Belongs to:    	Physical_Object_Type
Subclass of:   	Man-Made Entity
Physical Feature

Scope Note:	Man made features are those physical features which result from human intervention. Cf. E27 Physical Feature.

Properties:

classifications
    has type (is type of): Type
intellectual contents
    depicts concept (is depicted by): Type
          (mode of depiction : Type)
    depicts event (is depicted by): Event
          (mode of depiction  : Type)
    depicts object (is depicted by): Physical Entity
         (mode of depiction : Type)
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
structures
    shows visual item (is shown by): Visual Item
    consists of (is incorporated in): Material
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Modification: has produced (was produced by)
Type Assignment: classified (was classified by)
Physical Object: bears feature (is found on)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)
E26 Physical Feature

Belongs to:    	Physical_Object_Type
Subclass of:   	Physical Entity
Superclass of: 	Man-Made Feature, 
Site
Scope Note:	This class was introduced in order to avoid the counter-intuitive sense of referring to holes and similar features of objects as physical objects. Features are logically or physically attached to a particular physical object, and they share many of the attributes of physical objects - they can be measured and dated, and we can sometimes say who was responsible for them. However, you can't pick up a hole and put it in your pocket - Yellow Submarine not withstanding. Physical feature groups together all features of physical objects. Cf. Man-made features for the results of human intervention.

Properties:

classifications
    has type (is type of): Type
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
structures
    consists of (is incorporated in): Material
other descriptions
    has note: String

The entity is referenced by:
Physical Object: bears feature (is found on)
The entity inherits references :
Type Assignment: classified (was classified by)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)
E27 Site

Belongs to:    	Physical_Object_Type
Subclass of:   	Physical Feature
Scope Note:	A site is a recognisable place that can be represented by an Iconographic object, such as a photograph, painting or map. A site is composed of relatively immobile material items and features in a particular configuration at a particular location.

Properties:
classifications
    has type (is type of): Type
physical status, short cut
    has dimension (is dimension of): Dimension

    has condition (condition of): Condition State
structures
    consists of (is incorporated in): Material
other descriptions
    has note: String
The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
Physical Object: bears feature (is found on)
Man-Made Entity: depicts object (is depicted by)
            (mode of depiction: Type)

The Conceptual Objects:
All object types of double nature, physical and conceptual, are already listed under the physical object types.
E28 Conceptual Object

Belongs to:    	Concept_Type
Subclass of:   	CIDOC Entity
Superclass of: 	Design/Procedure
Right
Document
Linguistic Object
Visual Item
Iconographic Object

Scope note:	This entity is the attempt to group the non-material products of our minds, and specifically to allow for reasoning about their identity, circumstances of creation and historical implications. Characteristically, these things are created, invented or thought, and somehow documented or communicated between persons. Conceptual objects need not have a particular carrier, but may be found on several different carriers, such as paper, electronic signals, marks, audio media, paintings, photos, human memory, etc. They cannot be destroyed as long as they exist on at least one carrier or in memory. Examples include texts, maps, photos, music, sounds, fairy tales, signs, patterns, symbols, plans, rights, and rules. A greater distinction could be made between products having a clear identity, such as a specific text, or photographs, and the ideas and concepts shared and traded by groups of people.
Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
E29 Design or Procedure

Belongs to:    	Concept_Type
Subclass of:   	Conceptual Object

Scope note:	An established plan for execution of a series or group of technological actions, which result in a physical change of state in certain pieces of material and/or any physical object.

Examples: All elements of the AAT "processes and techniques" facets., a plan for a building, conservation procedures, complex editing techniques, flint napping, etc..

Properties:

classifications
    has type (is type of): Type
other descriptions
    usually employs (is usually employed by): Material
    associated with: Design or Procedure
has note: String
The entity is referenced by:
Modification: used specific technique (was used by)
Design or Procedure: associated with 
The entity inherits references :
Type Assignment: classified (was classified by)
E30 Right

Belongs to	Concept_Type
Subcass of	Conceptual Object
Superclass of	
Scope Note:	Rights are used in the sense of legal privileges such as the right of property, reproduction rights, etc.
Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Physical Object: is subject to (applies to)
Actor: possesses (is possessed by)
The entity inherits references :
Type Assignment: classified (was classified by)
E31 Document

Belongs to:    	Concept_Type
Subclass of:   	Conceptual Object
Superclass of: 	Authority Document

Scope note:	This entity comprises items which make propositions about reality, whether intentionally or by chance. The means may be text, graphics, images, sound, video. Examples: Books on history, maps, photos. 

Properties:

classifications
    has type (is type of): Type
intellectual contents
    refers to (is referred to by): Physical Object
other descriptions
    has note: String
The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
E32 Authority Document

Belongs to:    	Concept_Type
Subclass of:   	Document

Scope note:	This entity describes encyclopedia, thesauri, authority lists: all documents which define terminology or conceptual systems for consistent use.

e.g. Webster's, Getty Art and Architecture Thesaurus, MDA  Archaeological Objects Thesaurus, This Document, etc. 

Properties:

classifications
    has type (is type of): Type
intellectual contents
    refers to (is referred to by): Physical Object
structures
    contains (is part of): Type
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
E33 Linguistic Object

Belongs to:    	Concept_Type
Subclass of:   	Conceptual Object
Superclass of: 	Inscription
Title

Scope note:	This entity comprises texts of all kind, be they written or recorded speech, in any physical language.

Properties:

classifications
    has type (is type of): Type
    has language (is language of): Language
intellectual contents
    has translation (is translation of): Linguistic Object
other descriptions
    has note: String

The entity is only referenced by itself.
The entity inherits references :
Type Assignment: classified (was classified by)
E34 Inscription

Belongs to: 	Concept_Type
Subclass of: 	Linguistic Object
Mark

Scope note:	This entity comprises texts attached to a physical object. The attributes of the entity could be extended to include alphabet used, rather than documenting these features in the note. NB The entity does not describe idiosyncratic characteristics of individual physical embodiments of an inscription but the underlying prototype, e.g. Dόrer’s signature.
Properties:

classifications
    has type (is type of): Type
intellectual contents
    has translation (is translation of): Linguistic Object
other descriptions
    has language (is language of): Language
    has note: String
The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
Man-Made Entity: shows visual item (is shown by)
Linguistic Object: has translation (is translation of)
E35 Title

Belongs to:    	Concept_Type
Appellation_Type
Subclass of:   	Linguistic Object
Appellation

Scope note:	This entity comprises the short pieces of texts that are used, by the creator or tradition, to characterize or identify a work, often alluding to its subject. The work may be linguistic, musical, iconographic or other.

Examples: Giaconda, La Joconde, Mona Lisa, Die Dreigroschenoper, La Pie, La Marseillaise.  
Properties:

classifications
    has type (is type of): Type
has language (is language of): Language
intellectual contents
    has translation (is translation of): Linguistic Object
other descriptions
    has note: String

The entity is referenced by:
Physical Object: has title (is title of)
          (has type : Type) 
The entity inherits references :
Type Assignment: classified (was classified by)
Linguistic Object: has translation (is translation of)
E36 Visual Item

Belongs to:    	Concept_Type
Subclass of:   	Conseptual Object
Superclass of: 	Mark
Image

Scope Note:	Visual Items refers to the intellectual or conceptual aspect of recognizable marks and images. When we identify a trade mark, say the ICOM logo, we are generally prepared to say that the same logo is used on any number of publications. The size, orientation and colour may change, but something uniquely identifiable remains. The same can be said of images which are reproduced many times. What these examples highlight is that visual items are independent of their physical support. The visual items class provides a means of identifying and linking together objects which carry the same visual symbols, marks, images or whatever.
Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Man-Made Entity: shows visual item (is shown by)
The entity inherits references :
Type Assignment: classified (was classified by)
E37 Mark

Belongs to:    	Concept_Type
Subclass of:   	Visual Item
Superclass of: 	Inscription

Scope note:	
Martin Doerr: Symbols, signs, signatures or short texts applied to physical objects by arbitrary techniques in order to indicate the creator, owner, dedications, purpose, etc. 

Examples: Minoan double axe mark, ©, ,  STOP! .
 
This entity specifically does not included marks such as scratches, which have no semantic significance. These case be documented as physical features. 

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
Man-Made Entity: shows visual item (is shown by)
E38 Image

Belongs to:    	Concept_Type
Subclass of:   	Visual Item

Scope note:	This entity refers to distributions of form and colour which may be found on surfaces such as photos, paintings, prints,   and sculptures etc. or directly on electronic media. The degree to which variations in the distribution of form and colour are tolerated depends on a given purpose.

The ‘depiction’ links between objects and depicted subjects may be regarded as short cuts of an intermediate image node capturing the optical features of the depiction. Cf E25

Examples: The front side of all 20 Frs notes.
Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String
The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
Man-Made Entity: shows visual item (is shown by)
Actors Hierarchy

All entities in this hierarchy are instances of the metaclass “Actor_Type”.
Until now, only one subclass is defined, the physical person. As this has a physical nature as well, it is listed already under physical objects (In a passive sense, as patient, mummy etc.). Here in the future, all kinds of social organizations should be characterized.
E39 Actor

Belongs to:    	Actor_Type
Subclass of:   	CIDOC Entity
Superclass of: 	Legal Body
Person

Scope note:	People, either individuals or a groups of persons, or organisations, under the aspect of their role in activities. E.g. The ISO central committe, the Benaki Museum in Athens, Greece, the Bauhaus in Weimar, Germany, Monet, Me.

An informal group, such as a school of artists, may acquire an identity and perform actions without ever becoming an officially established legal entity. Such cases should be documented as instances of Actors, using an appropriate sub type. 

Properties:

classifications
    has type (is type of): Type
other descriptions
    possesses (is possessed by): Right
    has contact points (provides access to): Contact Point
    has note: String

The entity is referenced by:
Activity: carried out by (performed)
          (in the role of : Type)
Acquisition: transferred title to (acquired title of)
Acquisition: transferred title from (surrendered title of) 
Transfer of Custody: custody surrendered by (surrendered custody)
Transfer of Custody: custody received by (received custody)
Physical Object: right held by (owns rights to)
	(has type : Type)
	(has note : String)
Physical Object: has former/current keeper (is former/current keeper of) 
Physical Object: has current keeper (is former/current keeper of) 
Physical Object: has former/current owner (is former/current owner of)
Physical Object: has current owner (is current owner of)
The entity inherits references :
Type Assignment: classified (was classified by)
E40 Legal Body

Belongs to:	Actor_Type
Subcass of:	Actor
Scope Note::	A legal body is any institution or group of people which can act collectively as an agent i.e. it can perform actions, own property, create or destroy and be held responsible for its actions. The term 'personne morale' is often used in French. 
		
Examples: MDA (Europe) Ltd., GreenPeace. 
Properties:

classifications
    has type (is type of): Type
structures
    consists of (belongs to): Legal Body
other descriptions
    possesses (is possessed by): Right
    has contact points (provides access to): Contact Point
    has note: String
The entity is referenced by:
Person: is member of (has members)
and itself.
The entity inherits references :
Activity: carried out by (performed)
          (in the role of : Type)
Acquisition: transferred title to (acquired title of)
Acquisition: transferred title from (surrendered title of)
Transfer of Custody: custody surrendered by (surrendered custody)
Transfer of Custody: custody received by (received custody)
Type Assignment: classified (was classified by)
Physical Object: right held by (owns rights to)
	(has type : Type)
	(has note : String)
Physical Object: has former/current keeper (is former/current keeper of) 
Physical Object: has current keeper (is former/current keeper of) 
Physical Object: has former/current owner (is former/current owner of)
Physical Object: has current owner (is current owner of)

Person (repetition from under Biological Object)

Belongs to:    	Actor_Type
Physical_Object_Type
Subclass of:   	Actor
Biological Object

Properties (See under Biological Object)

Appellations Hierarchy

All entities in this hierarchy are instances of the metaclass “Appellation_Type. This hierarchy is thought to capture all kinds of social or technical identifiers, names, numbers, codes etc. To which degree there is an overlap with conceptual objects should be discussed.

E41 Appellation

Belongs to:    	Appellation_Type
Subclass of:   	CIDOC Entity
Superclass of: Object Identifier
Period Appellation
Place Appellation
Time Appellation
Title

Scope note:	This entity comprises all names in the proper sense. Codes or words, meaningless or meaningful, in the script of some group or encoding of an electronic system, used solely to identify a specific instance of some category within a certain context. These words do not identify the object by their meaning but by convention, tradition or agreement.

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
E42 Object Identifier

Belongs to:    	Appellation_Type
Subclass of:   	Appellation

Scope note:	Unique codes assigned to objects in order to identify them uniquely within the context of one or more organizations. Typically alphanumeric sequences.

examples: MM.GE.195, 13.45.1976, etc.
Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Identifier Assignment: assigns (is assigned by)
Identifier Assignment: deassigns (is deassigned by) 
Physical Object: is identified by (identifies)
Physical Object: preferred identifier is (is preferred identifier of)
The entity inherits references :
Type Assignment: classified (was classified by)
E43 Period Appellation

Belongs to:    	Appellation_Type
Subclass of:   	Appellation

Scope note:	Name of a period. E.g."Ming Dynasty", MM1A, Middle Minoan 1 A. Middle Ages, Medieval period.

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Period: is called (identifies)
The entity inherits references :
Type Assignment: classified (was classified by)
E44 Place Appellation

Belongs to:    	Appellation_Type
Subclass of:   	Appellation
Superclass of	Address
Section Definition
Spatial Coordinates
Place Name

Scope Note:	A place appellation is any sort of identifier used to refer to a place. Place appellations may vary over time, and the same appellation may be used to refer to several places, either because of cultural shifts, or because things move around. These unstable aspects of place appellations are dealt with in the more general Appellation class. Place appellations can be extremely varied in form, postal addresses and spatial coordinates and parts of buildings can all be considered as place appellations.

Examples: Vienna, Wien, Aquae Sulis Minerva, Bath, Cambridge, “The Other Place”. “The City”. 

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Place: is identified by (identifies)
The entity inherits references :
Type Assignment: classified (was classified by)
E45 Address

Belongs to:    	Appellation_Type
Subclass of:   	Place Appellation
		Contact Point
Scope Note:	An address is generally a postal address used for mailing. An address can be considered both as the name of a place and as a contact point for an actor. This dual aspect is reflected in the multiple inheritance.

		Example : 	1-29-3 Otsuka, Bunkyo-ku,
				Tokyo, 121, Japan
Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
Actor: has contact points (provides access to)
Place: is identified by (identifies)
E46 Section Definition

Belongs to:    	Appellation_Type
Subclass of:   	Place Appellation
Superclass of	
Scope Note:	section definition groups together names used to refer to parts of objects. The 'prow' of a boat, the 'frame' of the picture, the 'basement' of the building are all section definitions. The entity highlights the fact that parts of objects can be treated as locations. (cf. E53 Place) In answer to the question 'where is the signature?' one might reply 'on the lower left corner'.

	Example: The entrance lobby to MDA House, Matthew’s bedroom, the poop deck of H.M.S. Victory, the Venus de Milo’s left buttock, “left inner side of the box”. 
Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Physical Object: has section definition (defines section)
The entity inherits references :
Type Assignment: classified (was classified by) 
Place: is identified by (identifies)

E47 Spatial Coordinates

Belongs to:    	Appellation_Type
Subclass of:   	Place Appellation
Scope Note:	Coordinates are a specific form of place appellation, that is, a means of referring to a particular place. (cf E53 place) Coordinates are not restricted to longitude, latitude and altitude. Any regular system of reference that maps onto a physical object can be considered as coordinates.

	Examples: 6°5’29”N 45°12’13”W,
			Black queen’s bishop 4.

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
Place: is identified by (identifies)

E48 Place Name

Belongs to:    	Appellation_Type
Subclass of:   	Place Appellation
Scope Note:	A place name is a particular and common form of place appellation. 'Greece', 'Athens', 'Geneva', are all place names. Place names may shift their meaning over time. Cf Place appellations.

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
Place: is identified by (identifies)
E49 Time Appellation

Belongs to:    	Appellation_Type
Subclass of:   	Appellation
Superclass of	Date

Scope Note:	Time appellation groups all forms of names or codes, such as historical periods, and dates, which are used to refer to specific time frames. Time appellations may vary in their degree of precision, and they may be relative to other time frames, 'prehistoric' for example. These aspects of time appellations are dealt with in the more general 'appellations' class.

In contrast to cultural periods, proper names are seldom given to particular Time-spans, hence it was decided to exclude a specific entity ‘Time-spans name’. Time-spans are often referred to in association with cultural periods, and events e.g. ‘the duration of Ming Dynasty’. cf. E52 Time span.

Examples: Meiji, 1st half of the XX century, Quaternary, 1215 Hegira. Last century.

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Time-Span: is identified by (identifies) 
The entity inherits references :
Type Assignment: classified (was classified by)
E50 Date

Belongs to:    	Appellation_Type
Subclass of:   	Time Appellation
Superclass of:
	
Scope Note:	Dates are a specific form of time appellation. Dates may vary in their degree of precision. E.g. 1900, 4-4-1959, 19640604.

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is not referenced.
The entity inherits references :
Type Assignment: classified (was classified by)
Time-Span: is identified by (identifies) 

Title (Repetition from under Linguistic Object)

Belongs to:    	Concept_Type
Appellation_Type
Subclass of:   	Appellation
Linguistic Object

Properties: ( see under Linguistic Object)
Appellation associated entities:
E51 Contact Point
(new)

Belongs to:	Meta_Entity
Subcass of:	CIDOC Entity
Superclass of:	Address
Scope Note:	This entity comprises identifiers used to communicate with Actors. Examples: E-mail addresses, telephone numbers, post office boxes, Fax numbers, etc. NB postal addresses can be considered both as place appellations and Contact Points.

Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Actor: has contact points (provides access to)
The entity inherits references :
Type Assignment: classified (was classified by)

Address (Repetition from under Place Appellation)

Belongs to:    	Appellation_Type
Subclass of:   	Contact Point
Place Appellation

Properties: ( see under Place Appellation)
Measures Hierarchy

All entities in this hierarchy are instances of the metaclass “Measure_Type”. Three submetaclasses are defined, the “Time_Type” for the hierarchy of determinators of a date range in any possible system (e.g. rules of Egyptian kings, Julian dates, C14 etc.), the “Location_Type” for the determinators of areas in space, relative to the surface of the earth or other relevant methods, and the “Dimension_Types” for all relative measures, as money, lengths, durations, degrees etc.

E52 Time-Span
(former E36)

Belongs to:    	Time_Type
Subclass of:   	CIDOC Entity

Scope note:	A determination of a range of dates or duration without any further connotations, to be used to confine periods, events, and any other phenomena valid for a certain time. A time appellation is a verbal form which refers to a time-span. The time-span itself is a temporal extent in the sense of Galilean physics. Different time-appellations may express the same time-span.

Examples : from 12-17-1993 to 12-8-1996, 14h30 – 16h22 4th July 1945, 9.30 am 1.1.1999 to 2.OO pm 1.1.1999, Duration of the Ming Dynasty.
Properties:

identifications
    is identified by (identifies): Time-Appellation
classifications
    has type (is type of): Type
numerical values
    begins at: Time Primitive
 
    begins at qualify: String
    ends at: Time Primitive

    ends at qualify: String
structures
    consists of (forms part of): Time-Span
    falls within (contains): Time-Span
other descriptions
    has note: String

The entity is referenced by:
Temporal Entity: has time-span (is time-span of)
and by itself
The entity inherits references :
Type Assignment: classified (was classified by)
E53 Place

Belongs to:    	Location_Type
Subclass of:   	CIDOC Entity

Scope note:	This entity describes extents in space, in particular on the surface of the earth, in the pure sense of physics: independent from temporal phenomena and matter. Places are usually determined by reference to the position of “immobile” objects such as buildings, cities, mountains, and rivers. On a large time-scale however, these things are either not persistent or may actually move, with respect to each other. This motivates the search for a global or absolute system of reference.

However, relative references are more relevant in the context of cultural documentation and records of relative places tend to be more precise. In particular, we are often interested in position in relation to large objects, such as ships, which move. Any object can serve as a reference for place determination; therefore the model foresees the notion of a "section" of a physical object as a place determination of equal validity. 

Matching between multiple reference systems is in principle possible for a given moment in time, but depends on the precision and completeness of the information available. However, the resolution of places to “absolute” coordinates is not, in general, necessary in cultural documentation systems, and absolute referencing may be dependent on the present state of global knowledge. 

Example: the place at which Nelson died is known with reference to a large mobile object – H.M.S Victory. A resolution of this place in terms of absolute coordinates requires knowledge about the position of the vessel and the precise time of his death, either of which may be revised. Hence, documenting only an absolute reference effectively removes the possibility of recalculating. It is more relevant to preserve the reasoning behind an assumption than the result. 

Hence a place can be determined by combining, one or more times, a frame of reference and a location with respect to this frame. These combinations are modelled by Place Appellation. (Instance of place are themselves nameless.)

Example: The place referred to by the “Fish collected at three miles north of the confluence of the Arve and the Rhone, or N W. (GPS)”,  Here -> <- 
Properties:
identifications
    is identified by (identifies): Place Appellation 
classifications
    has type (is type of): Type
structures
    consists of (forms part of): Place
    falls within (contains): Place
other descriptions
    has note: String

The entity is referenced by:

Period: took place at (witnessed)
Move: moved to (occupied)
Move: moved from (vacated)
Physical Object: has section (is located on or within)
Physical Object: has former/current location (is former/current location of) 
Physical Object: has current permanent location (is current permanent location of)
Physical Object: has current location (currently holds)
and by itself
The entity inherits references :
Type Assignment: classified (was classified by)
E54 Dimension

Belongs to:    	Measure_Type
Subclass of:   	CIDOC Entity

Scope note:	This entity is an abstract class for properties that are measured by some calibrated means and result in numerical values, 

Examples: currency: £26.00, length: 4 cm, diameter 26 mm, weight 150 lbs, density : 0.85 gm/cc, luminescence : 56 ISO lumens, tin content: 0.46 %, taille au garot : 5 hands, C14 date : 2460 years, etc.
Properties:

classifications
    has type (is type of): Type
numerical values
    value: Number
    unit: Measurement Unit
other descriptions
    has note: String

The entity is referenced by:
Measurement: observed dimension (was observed)
Physical Entity: has dimension (is dimension of) 
The entity inherits references:
Type Assignment: classified (was classified by)

Types Hierarchy

All entities in this hierarchy are instances of the metaclass “Type_Type”. This hierarchy does not belong to the CIDOC Entities in the proper sense, as its instances are names for aggregations, sets, or undefined masses of physical items or intellectual constructs. They are thought as elements of authority files on one side, on the other they are used to refer to entities of the Model or any refinement of it as data elements at appropriate points from within the Model in a consistent way. This implies, that the respective authorities must be compatible in structure with the Model. As a rule, every entity of the model gives rise to a “Type_Type”, which are not listed here, as they are defined by rule. Only those types of types not generated by the rule are given explicitly:
E55 Type

Belongs to:    	Type_Type
Superclass of: 	Language
Material
Measurement Unit
Measurable (Observable)

Scope note:	This entity captures the names of all entities in the model and any refinements of these entities which do not require further analysis of their formal properties, but which represent typological distinctions important to a given user group. The semantic interpretation of these subtypes is based on the agreement of specific groups. Instances of the Type entity have to be formally organized in thesauri, with scope notes, illustrations, etc. to clarify their meaning. In general, it is expected that different domains and cultural groups develop different thesauri in parallel. Consistent reasoning on the expansion of sub terms used in a thesaurus is possible insofar as it conforms to both the entities and the hierarchies of this Model.

Examples: Weight, length, depth are types of measurement. Portrait, sketch, animation could be types of depiction. Oral, written could be types of language. Excellent, good, poor could be types of condition state.
The entity is referenced by:
CIDOC Entity: has type (is type of)
Event: depicts event (is depicted by): mode of depiction 
Activity: had as general purpose (was purpose of)
Modification: used general technique (was technique of)
Type Assignment: assigned (was assigned by)
Physical Entity: depicts object (is depicted by): mode of depiction
Physical Object: had as general use (was use of)
Man-Made Object: was intended for (was intention of)
Man-Made Entity: depicts concept (is depicted by)
Authority Document: contains (is part of)
Actor: carried out by (performed): in the role of
Actor: right held by (owns rights to):has type
Title: has title (is title of): has type
Type: depicts concept (is depicted by): mode of depiction
E56 Language

Belongs to:    	Type_Type
Subclass of:   	Type

Scope note:	This entity comprises the names identifying natural languages. Internationally used codes are recommended (ISO…). This type does not correspond to another explicit entity in the Model.
Example:	ISO language codes.

The entity is referenced by:
Linguistic Object: has language (is language of) 
The entity inherits references :
CIDOC Entity: has type (is type of)
Event: depicts event (is depicted by): mode of depiction 
Activity: had as general purpose (was purpose of)
Modification: used general technique (was technique of)
Type Assignment: assigned (was assigned by)
Physical Entity: depicts object (is depicted by): mode of depiction
Physical Object: had as general use (was use of)
Man-Made Object: was intended for (was intention of)
Man-Made Entity: depicts concept (is depicted by)
Authority Document: contains (is part of)
Actor: carried out by (performed): in the role of
Actor: right held by (owns rights to):has type
Title: has title (is title of): has type 
Type: depicts concept (is depicted by): mode of depiction
E57 Material

Belongs to:    	Type_Type
Subclass of:   	Type

Scope note:	This entity comprises the names used to identify materials. Internationally used codes and terminology are recommended. This type does not correspond to any other explicit entity in the Model, because materials do not have well-defined instances, especially after they are used. Discrete pieces of raw-materials kept in museums, such as bricks, sheets of fabric, pieces of metal, should be modelled separately just as other objects. Discrete used or processed pieces, such as the stones from Nefer Titi's temple, should be modelled as parts.

The entity is referenced by:
Physical Entity: consists of (is incorporated in)
Design or Procedure: usually employs (is usually employed by) 

The entity inherits references :
CIDOC Entity: has type (is type of)
Event: depicts event (is depicted by): mode of depiction 
Activity: had as general purpose (was purpose of)
Modification: used general technique (was technique of)
Type Assignment: assigned (was assigned by)
Physical Entity: depicts object (is depicted by): mode of depiction
Physical Object: had as general use (was use of)
Man-Made Object: was intended for (was intention of)
Man-Made Entity: depicts concept (is depicted by)
Authority Document: contains (is part of)
Actor: carried out by (performed): in the role of
Actor: right held by (owns rights to):has type
Title: has title (is title of): has type 
Type: depicts concept (is depicted by): mode of depiction

E58 Measurement Unit

Belongs to:    	Type_Type
Subclass of:   	Type
Scope Note:	This entity provides the authority list for all types of measurement units: feet, inches, centimeters, litres, lumens, etc.
Properties:

classifications
    has type (is type of): Type
other descriptions
    has note: String

The entity is referenced by:
Dimension: unit
The entity inherits references :
CIDOC Entity: has type (is type of)
Event: depicts event (is depicted by): mode of depiction 
Activity: had as general purpose (was purpose of)
Modification: used general technique (was technique of)
Type Assignment: assigned (was assigned by)
Physical Entity: depicts object (is depicted by): mode of depiction
Physical Object: had as general use (was use of)
Man-Made Object: was intended for (was intention of)
Man-Made Entity: depicts concept (is depicted by)
Authority Document: contains (is part of)
Actor: carried out by (performed): in the role of
Actor: right held by (owns rights to):has type
Title: has title (is title of): has type 
Type: depicts concept (is depicted by): mode of depiction
Other entities:
E59 Primitive value

Belongs to:    	Value_Type
Scope Note:	This entity is a container for primitive values used as documentation elements which are not further analysed. As such they are not considered as elements within our universe of discourse. No specific implementation recommendations are made.  

The entity is not referenced.
E60 Number

Belongs to:	Value_Type
Subcass of:	Primitive Value
Superclass of:	
Scope Note:	Integers, real or complex numbers.
The entity is referenced by:
Physical Object: has number of parts
Dimension: value
E61 Time Primitive

Belongs to:    	Value
Subclass of:   	Primitive Value
Scope Note:	This entity is a primitive value that should implement appropriate validation and interval logic for date ranges and precision relevant to cultural documentation. It is not further analysed in this model

The entity is referenced by:
Time-Span: begins at
Time-Span: ends at
E62 String

Belongs to:    	Value
Subclass of:   	Primitive Value
Scope Note:	This entity is a primitive value to be used for any kind of documentation which lacks formal structure defined within the model e.g. free text, bitmaps, vector graphics, etc.

The entity is referenced by:
CIDOC Entity: has note
Physical Object: right held by (owns rights to): has note 
Time-Span: begins at qualify
Time-Span: ends at qualify

APPENDIX
Index of the links of the CIDOC CRM sorted alphabetic :

Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P17.2	Type Assignment	E17	assigned (was assigned by)	Type	E55	
P15.2	Identifier Assignment	E15	assigns (is assigned by)	Object Identifier	E42	
P29.2	Design or Procedure	E29	associated with	Design or Procedure	E29     	
P19.13	Physical Object	E19	bears feature (is found on)	Physical Feature	E26	
P52.2	Time-Span	E52	begins at	Time Primitive	E61	
P52.3	Time-Span	E52	begins at qualify	String	E62	
P7.1	Activity	E7	carried out by (performed)
       (in the role of : Type)	Actor	E39	
P17.1	Type Assignment	E17	classified (was classified by)	CIDOC Entity	E1	
P14.1	Condition Assessment	E14	concerns (assessed by)	Physical Object	E19	
P40.1	Legal Body	E40	consists of (belongs to)	Legal Body	E40	
P52.6	Time-Span	E52	consists of (forms part of)	Time-Span	E52	
P53.2	Place	E53	consists of (forms part of)	Place	E53	
P3.1	Condition State	E3	consists of (forms part of)	Condition State	E3	
P4.4	Period	E4	consists of (forms part of)	Period	E4	
P18.3	Physical Entity	E18	consists of (is incorporated in)	Material	E57	
P32.1	Authority Document	E32	contains (is part of)	Type	E55	
P10.2	Transfer of Custody	E10	custody received by (received custody)	Actor	E39	
P10.1	Transfer of Custody	E10	custody surrendered by (surrendered custody)	Actor	E39	
P15.3	Identifier Assignment	E15	deassigns (is deassigned by)	Object Identifier	E42	
P24.3	Man-Made Entity	E24	depicts concept (is depicted by)
      (mode of depiction : Type)	Type	E55       	
P24.2	Man-Made Entity	E24	depicts event (is depicted by)
       (mode of depiction  : Type)	Event	E5	
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P24.1	Man-Made Entity	E24	depicts object (is depicted by) 
       (mode of depiction : Type)	Physical Entity	E18	
P6.1	Destruction	E6	destroyed (was destroyed by)	Physical Object	E19	
P52.4	Time-Span	E52	ends at	Time Primitive	E61	
P52.5	Time-Span	E52	ends at qualify	String	E62	
P52.7	Time-Span	E52	falls within (contains)	Time-Span	E52	
P53.3	Place	E53	falls within (contains)	Place	E53	
P3.2	Condition State	E3	falls within (contains)	Condition State	E3	
P4.5	Period	E4	falls within (contains)	Period	E4	
P7.5	Activity	E7	had as general purpose (was purpose of)	Type	E55	
P19.18	Physical Object	E19	had as general use (was use of)	Type	E55	
P7.4	Activity	E7	had specific purpose (was purpose of)	Activity	E7	
P18.2	Physical Entity	E18	has condition (condition of)	Condition State	E3	
P39.2	Actor	E39	has contact points (provides access to) 	Contact Point	E51	
P19.7	Physical Object	E19	has current keeper (is former/current keeper of) 	Actor	E39	
P19.12	Physical Object	E19	has current location (currently holds) 	Place	E53	
P19.9	Physical Object	E19	has current owner (is current owner of)	Actor	E39	
P19.11	Physical Object	E19	has current permanent location (is current permanent location of)	Place	E53	
P18.1	Physical Entity	E18	has dimension (is dimension of)	Dimension	E54	
P19.6	Physical Object	E19	has former /current keeper : (is former/current keeper of)	Actor	E39	
P19.10	Physical Object	E19	has former/current location (is former/current location of) 	Place	E53	
P19.8	Physical Object	E19	has former/current owner (is former/current owner of)	Actor	E39	
P14.2	Condition Assessment	E14	has identified (identified by)	Condition State	E3	
P33.1	Linguistic Object	E33	has language (is language of)	Language	E56	
P1.2	CIDOC Entity	E1	has note	String	E62	
P19.14	Physical Object	E19	has number of parts	Number	E60	
P11.1	Modification	E11	has produced (was produced by)	Man-Made Entity	E24	
P19.16	Physical Object	E19	has section definition (defines section)	Section Definition	E46	
P19.17	Physical Object	E19	has section (is located on or within)	Place	E53	
P2.1	Temporal Entity	E2	has time-span (is time-span of)	Time-Span	E52	
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P19.2	Physical Object	E19	has title (is title of)
      (has type : Type)	Title	E35	
P33.2	Linguistic Object	E33	has translation (is translation of)	Linguistic Object	E33	
P1.1	CIDOC Entity	E1	has type (is type of)	Type	E55	
P4.1	Period	E4	is called (identifies)	Period Appellation	E43	
P19.15	Physical Object	E19	is composed of (forms part of)	Physical Object	E19	
P19.1	Physical Object	E19	is identified by (identifies)	Object Identifier	E42	
P53.1	Place	E53	is identified by (identifies)	Place Appellation	E44	
P52.1	Time-Span	E52	is identified by (identifies)	Time-Appellation	E49	
P21.1	Person	E21	is member of (has members)	Legal Body	E40	
P19.4	Physical Object	E19	is subject to (applies to)	Right	E30	
P16.1	Measurement	E16	measured (was measured)	Physical Object	E19	
P9.1	Move	E9	moved (moved by)	Physical Object	E19	
P9.3	Move	E9	moved from (vacated)	Place	E53	
P9.2	Move	E9	moved to (occupied)	Place	E53	
P16.2	Measurement	E16	observed dimension (was observed)	Dimension	E54	
P39.1	Actor	E39	possesses (is possessed by)	Right	E30	
P19.3	Physical Object	E19	preferred identifier is (is preferred identifier of)	Object Identifier	E42	
P31.1	Document	E31	refers to (is referred to by)	Physical Object	E19	
P15.1	Identifier Assignment	E15	registers (registered by)	Physical Object	E19	
P19.5	Physical Object	E19	right held by (owns rights to)
      (has type: Type)
      (has note: String)	Actor	E39	
P24.4	Man-Made Entity	E24	shows visual item (is shown by)	Visual Item	E36	
P4.2	Period	E4	took place at (witnessed)	Place	E53	
P4.3	Period	E4	took place on or within (witnessed)	Physical Object	E19	
P10.3	Transfer of Custody	E10	transferred custody of (custody changed by)	Physical Object	E19	
P8.2	Acquisition	E8	transferred title from (surrendered title of)	Actor	E39	
P8.3	Acquisition	E8	transferred title of (changed ownership by)	Physical Object	E19	
P8.1	Acquisition	E8	transferred title to (acquired title of)	Actor	E39	
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P54.2	Dimension	E54	unit	Measurement Unit	E58	
P11.2	Modification	E11	used general technique (was technique of)	Type	E55	
P7.2	Activity	E7	used object (was used for)
       (mode of use: String)	Physical Object	E19	
P11.3	Modification	E11	used specific technique (was used by)	Design or Procedure	E29	
P29.1	Design or Procedure	E29	usually employs (is usually employed by	Material	E57	
P54.1	Dimension	E54	value	Number	E60	
E22.1	Man-Made Object	E22	was intended for (was intention of)	Type	E55	
P7.3	Activity	E7	was intended use of (was made for)
       (mode of use: String)	Man-Made Object	E22	

Index of the links of the CIDOC CRM sorted by domain:

Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P1.1	CIDOC Entity	E1	has type (is type of)	Type	E55	
P1.2	CIDOC Entity	E1	has note	String	E62	
P2.1	Temporal Entity	E2	has time-span (is time-span of)	Time-Span	E52	
P3.1	Condition State	E3	consists of (forms part of)	Condition State	E3	
P3.2	Condition State	E3	falls within (contains)	Condition State	E3	
P4.1	Period	E4	is called (identifies)	Period Appellation	E43	
P4.2	Period	E4	took place at (witnessed)	Place	E53	
P4.3	Period	E4	took place on or within (witnessed)	Physical Object	E19	
P4.4	Period	E4	consists of (forms part of)	Period	E4	
P4.5	Period	E4	falls within (contains)	Period	E4	
P6.1	Destruction	E6	destroyed (was destroyed by)	Physical Object	E19	
P7.1	Activity	E7	carried out by (performed)
       (in the role of : Type)	Actor	E39	
P7.2	Activity	E7	used object (was used for)
       (mode of use: String)	Physical Object	E19	
P7.3	Activity	E7	was intended use of (was made for)
       (mode of use: String)	Man-Made Object	E22	
P7.4	Activity	E7	had specific purpose (was purpose of)	Activity	E7	
P7.5	Activity	E7	had as general purpose (was purpose of)	Type	E55	
P8.1	Acquisition	E8	transferred title to (acquired title of)	Actor	E39	
P8.2	Acquisition	E8	transferred title from (surrendered title of)	Actor	E39	
P8.3	Acquisition	E8	transferred title of (changed ownership by)	Physical Object	E19	
P9.1	Move	E9	moved (moved by)	Physical Object	E19	
P9.2	Move	E9	moved to (occupied)	Place	E53	
P9.3	Move	E9	moved from (vacated)	Place	E53	
P10.1	Transfer of Custody	E10	custody surrendered by (surrendered custody)	Actor	E39	
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P10.2	Transfer of Custody	E10	custody received by (received custody)	Actor	E39	
P10.3	Transfer of Custody	E10	transferred custody of (custody changed by)	Physical Object	E19	
P11.1	Modification	E11	has produced (was produced by)	Man-Made Entity	E24	
P11.2	Modification	E11	used general technique (was technique of)	Type	E55	
P11.3	Modification	E11	used specific technique (was used by)	Design or Procedure	E29	
P14.1	Condition Assessment	E14	concerns (assessed by)	Physical Object	E19	
P14.2	Condition Assessment	E14	has identified (identified by)	Condition State	E3	
P15.1	Identifier Assignment	E15	registers (registered by)	Physical Object	E19	
P15.2	Identifier Assignment	E15	assigns (is assigned by)	Object Identifier	E42	
P15.3	Identifier Assignment	E15	deassigns (is deassigned by)	Object Identifier	E42	
P16.1	Measurement	E16	measured (was measured)	Physical Object	E19	
P16.2	Measurement	E16	observed dimension (was observed)	Dimension	E54	
P17.1	Type Assignment	E17	classified (was classified by)	CIDOC Entity	E1	
P17.2	Type Assignment	E17	assigned (was assigned by)	Type	E55	
P18.1	Physical Entity	E18	has dimension (is dimension of)	Dimension	E54	
P18.2	Physical Entity	E18	has condition (condition of)	Condition State	E3	
P18.3	Physical Entity	E18	consists of (is incorporated in)	Material	E57	
P19.1	Physical Object	E19	is identified by (identifies)	Object Identifier	E42	
P19.2	Physical Object	E19	has title (is title of)
      (has type : Type)	Title	E35	
P19.3	Physical Object	E19	preferred identifier is (is preferred identifier of)	Object Identifier	E42	
P19.4	Physical Object	E19	is subject to (applies to)	Right	E30	
P19.5	Physical Object	E19	right held by (owns rights to)
      (has type: Type)
      (has note: String)	Actor	E39	
P19.6	Physical Object	E19	has former /current keeper : (is former/current keeper of)	Actor	E39	
P19.7	Physical Object	E19	has current keeper (is former/current keeper of) 	Actor	E39	
P19.8	Physical Object	E19	has former/current owner (is former/current owner of)	Actor	E39	
P19.9	Physical Object	E19	has current owner (is current owner of)	Actor	E39	
P19.10	Physical Object	E19	has former/current location (is former/current location of) 	Place	E53	

Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P19.11	Physical Object	E19	has current permanent location (is current permanent location of)	Place	E53	
P19.12	Physical Object	E19	has current location (currently holds) 	Place	E53	
P19.13	Physical Object	E19	bears feature (is found on)	Physical Feature	E26	
P19.14	Physical Object	E19	has number of parts	Number	E60	
P19.15	Physical Object	E19	is composed of (forms part of)	Physical Object	E19	
P19.16	Physical Object	E19	has section definition (defines section)	Section Definition	E46	
P19.17	Physical Object	E19	has section (is located on or within)	Place	E53	
P19.18	Physical Object	E19	had as general use (was use of)	Type	E55	
P21.1	Person	E21	is member of (has members)	Legal Body	E40	
E22.1	Man-Made Object	E22	was intended for (was intention of)	Type	E55	
P24.1	Man-Made Entity	E24	depicts object (is depicted by) 
       (mode of depiction : Type)	Physical Entity	E18	
P24.2	Man-Made Entity	E24	depicts event (is depicted by)
       (mode of depiction  : Type)	Event	E5	
P24.3	Man-Made Entity	E24	depicts concept (is depicted by)
      (mode of depiction : Type)	Type	E55       	
P24.4	Man-Made Entity	E24	shows visual item (is shown by)	Visual Item	E36	
P29.1	Design or Procedure	E29	usually employs (is usually employed by	Material	E57	
P29.2	Design or Procedure	E29	associated with	Design or Procedure	E29     	
P31.1	Document	E31	refers to (is referred to by)	Physical Object	E19	
P32.1	Authority Document	E32	contains (is part of)	Type	E55	
P33.1	Linguistic Object	E33	has language (is language of)	Language	E56	
P33.2	Linguistic Object	E33	has translation (is translation of)	Linguistic Object	E33	
P39.1	Actor	E39	possesses (is possessed by)	Right	E30	
P39.2	Actor	E39	has contact points (provides access to) 	Contact Point	E51	
P40.1	Legal Body	E40	consists of (belongs to)	Legal Body	E40	
P52.1	Time-Span	E52	is identified by (identifies)	Time-Appellation	E49	
P52.2	Time-Span	E52	begins at	Time Primitive	E61	
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P52.3	Time-Span	E52	begins at qualify	String	E62	
P52.4	Time-Span	E52	ends at	Time Primitive	E61	
P52.5	Time-Span	E52	ends at qualify	String	E62	
P52.6	Time-Span	E52	consists of (forms part of)	Time-Span	E52	
P52.7	Time-Span	E52	falls within (contains)	Time-Span	E52	
P53.1	Place	E53	is identified by (identifies)	Place Appellation	E44	
P53.2	Place	E53	consists of (forms part of)	Place	E53	
P53.3	Place	E53	falls within (contains)	Place	E53	
P54.1	Dimension	E54	value	Number	E60	
P54.2	Dimension	E54	unit	Measurement Unit	E58	

Index of the links of the CIDOC CRM sorted by Range:
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P17.1	Type Assignment	E17	classified (was classified by)	CIDOC Entity	E1	
P3.1	Condition State	E3	consists of (forms part of)	Condition State	E3	
P3.2	Condition State	E3	falls within (contains)	Condition State	E3	
P18.2	Physical Entity	E18	has condition (condition of)	Condition State	E3	
P14.2	Condition Assessment	E14	has identified (identified by)	Condition State	E3	
P4.4	Period	E4	consists of (forms part of)	Period	E4	
P4.5	Period	E4	falls within (contains)	Period	E4	
P24.2	Man-Made Entity	E24	depicts event (is depicted by)
       (mode of depiction  : Type)	Event	E5	
P7.4	Activity	E7	had specific purpose (was purpose of)	Activity	E7	
P24.1	Man-Made Entity	E24	depicts object (is depicted by) 
       (mode of depiction : Type)	Physical Entity	E18	
P14.1	Condition Assessment	E14	concerns (assessed by)	Physical Object	E19	
P6.1	Destruction	E6	destroyed (was destroyed by)	Physical Object	E19	
P19.15	Physical Object	E19	is composed of (forms part of)	Physical Object	E19	
P16.1	Measurement	E16	measured (was measured)	Physical Object	E19	
P9.1	Move	E9	moved (moved by)	Physical Object	E19	
P31.1	Document	E31	refers to (is referred to by)	Physical Object	E19	
P15.1	Identifier Assignment	E15	registers (registered by)	Physical Object	E19	
P4.3	Period	E4	took place on or within (witnessed)	Physical Object	E19	
P10.3	Transfer of Custody	E10	transferred custody of (custody changed by)	Physical Object	E19	
P8.3	Acquisition	E8	transferred title of (changed ownership by)	Physical Object	E19	
P7.2	Activity	E7	used object (was used for)
       (mode of use: String)	Physical Object	E19	
P7.3	Activity	E7	was intended use of (was made for)
       (mode of use: String)	Man-Made Object	E22	
P11.1	Modification	E11	has produced (was produced by)	Man-Made Entity	E24	
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P19.13	Physical Object	E19	bears feature (is found on)	Physical Feature	E26	
P29.2	Design or Procedure	E29	associated with	Design or Procedure	E29	
P11.3	Modification	E11	used specific technique (was used by)	Design or Procedure	E29	
P19.4	Physical Object	E19	is subject to (applies to)	Right	E30	
P39.1	Actor	E39	possesses (is possessed by)	Right	E30	
P33.2	Linguistic Object	E33	has translation (is translation of)	Linguistic Object	E33	
P19.2	Physical Object	E19	has title (is title of)
      (has type : Type)	Title	E35	
P24.4	Man-Made Entity	E24	shows visual item (is shown by)	Visual Item	E36	
P7.1	Activity	E7	carried out by (performed)
       (in the role of : Type)	Actor	E39	
P10.2	Transfer of Custody	E10	custody received by (received custody)	Actor	E39	
P10.1	Transfer of Custody	E10	custody surrendered by (surrendered custody)	Actor	E39	
P19.7	Physical Object	E19	has current keeper (is former/current keeper of) 	Actor	E39	
P19.9	Physical Object	E19	has current owner (is current owner of)	Actor	E39	
P19.6	Physical Object	E19	has former /current keeper : (is former/current keeper of)	Actor	E39	
P19.8	Physical Object	E19	has former/current owner (is former/current owner of)	Actor	E39	
P19.5	Physical Object	E19	right held by (owns rights to)
      (has type: Type)
      (has note: String)	Actor	E39	
P8.2	Acquisition	E8	transferred title from (surrendered title of)	Actor	E39	
P8.1	Acquisition	E8	transferred title to (acquired title of)	Actor	E39	
P40.1	Legal Body	E40	consists of (belongs to)	Legal Body	E40	
P21.1	Person	E21	is member of (has members)	Legal Body	E40	
P15.2	Identifier Assignment	E15	assigns (is assigned by)	Object Identifier	E42	
P15.3	Identifier Assignment	E15	deassigns (is deassigned by)	Object Identifier	E42	
P19.1	Physical Object	E19	is identified by (identifies)	Object Identifier	E42	
P19.3	Physical Object	E19	preferred identifier is (is preferred identifier of)	Object Identifier	E42	
P4.1	Period	E4	is called (identifies)	Period Appellation	E43	
P53.1	Place	E53	is identified by (identifies)	Place Appellation	E44	
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P19.16	Physical Object	E19	has section definition (defines section)	Section Definition	E46	
P52.1	Time-Span	E52	is identified by (identifies)	Time-Appellation	E49	
P39.2	Actor	E39	has contact points (provides access to) 	Contact Point	E51	
P52.6	Time-Span	E52	consists of (forms part of)	Time-Span	E52	
P52.7	Time-Span	E52	falls within (contains)	Time-Span	E52	
P2.1	Temporal Entity	E2	has time-span (is time-span of)	Time-Span	E52	
P53.2	Place	E53	consists of (forms part of)	Place	E53	
P53.3	Place	E53	falls within (contains)	Place	E53	
P19.12	Physical Object	E19	has current location (currently holds) 	Place	E53	
P19.11	Physical Object	E19	has current permanent location (is current permanent location of)	Place	E53	
P19.10	Physical Object	E19	has former/current location (is former/current location of) 	Place	E53	
P19.17	Physical Object	E19	has section (is located on or within)	Place	E53	
P9.3	Move	E9	moved from (vacated)	Place	E53	
P9.2	Move	E9	moved to (occupied)	Place	E53	
P4.2	Period	E4	took place at (witnessed)	Place	E53	
P18.1	Physical Entity	E18	has dimension (is dimension of)	Dimension	E54	
P16.2	Measurement	E16	observed dimension (was observed)	Dimension	E54	
P17.2	Type Assignment	E17	assigned (was assigned by)	Type	E55	
P32.1	Authority Document	E32	contains (is part of)	Type	E55	
P24.3	Man-Made Entity	E24	depicts concept (is depicted by)
      (mode of depiction : Type)	Type	E55	
P7.5	Activity	E7	had as general purpose (was purpose of)	Type	E55	
P19.18	Physical Object	E19	had as general use (was use of)	Type	E55	
P1.1	CIDOC Entity	E1	has type (is type of)	Type	E55	
P11.2	Modification	E11	used general technique (was technique of)	Type	E55	
E22.1	Man-Made Object	E22	was intended for (was intention of)	Type	E55	
P33.1	Linguistic Object	E33	has language (is language of)	Language	E56	
P18.3	Physical Entity	E18	consists of (is incorporated in)	Material	E57	
P29.1	Design or Procedure	E29	usually employs (is usually employed by	Material	E57	
P54.2	Dimension	E54	unit	Measurement Unit	E58	
Link id	Entity – Domain	Domain id	Link Name	Entity - Range	Range id	
P19.14	Physical Object	E19	has number of parts	Number	E60	
P54.1	Dimension	E54	value	Number	E60	
P52.2	Time-Span	E52	begins at	Time Primitive	E61	
P52.4	Time-Span	E52	ends at	Time Primitive	E61	
P52.3	Time-Span	E52	begins at qualify	String	E62	
P52.5	Time-Span	E52	ends at qualify	String	E62	
P1.2	CIDOC Entity	E1	has note	String	E62