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Difference between revisions of "EntityId"

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== Version ==
 
== Version ==
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== Definition ==
 
== Definition ==
* Uniquely identifies an [[Entity]] instance within its containing [[Context]].  
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* Identifies an [[Entity]] within its containing [[Context]].
* MAY also identify the [[Entity]] uniquely globally.  
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* MAY be absolute or relative
* An [[EntityId]] is of type [[Entity UDI]]
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* An absolute [[EntityId]]
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** Resolves to one ''authoritative'' [[Entity]]
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** MUST uniquely identify both an [[Context]] and a specific [[Entity]] within it.
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* A relative [[Entity UDI]] MUST uniquely identify an [[Entity]] within the local [[Context]].
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* Is kind of [[UDI]] URI.
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* An [[EntityId]] is a "Resource UDI" as defined in section 4 of [http://www.azigo.com/udi/udi-syntax.html UDI Syntax]
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== See Also ==
 
* [[EntityId Requirements]]
 
  
  
 
[[Category:Context Data Model 2.0]]
 
[[Category:Context Data Model 2.0]]

Latest revision as of 22:49, 9 November 2010

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Version

This page defines the concept of EntityId used in the Context Data Model 2.0.

Definition

  • Identifies an Entity within its containing Context.
  • MAY be absolute or relative
  • An absolute EntityId
    • Resolves to one authoritative Entity
    • MUST uniquely identify both an Context and a specific Entity within it.
  • A relative Entity UDI MUST uniquely identify an Entity within the local Context.
  • Is kind of UDI URI.
  • An EntityId is a "Resource UDI" as defined in section 4 of UDI Syntax

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