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| − | == Introduction ==
| + | #REDIRECT [[Entity]] |
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| − | == Definition ==
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| − | * A digital representation of a person, thing or concept.
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| − | * A Entity has zero or more [[Attribute]]s
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| − | ===As Used In Higgins===
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| − | * Most [[Entity | Entities]] have one [[LocalId]] [[Attribute]]
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| − | * Some of the [[Attribute]]s of an [[Entity]] may be [[EntityId]] references to other [[Entity | Entities]] in the same or different [[Context]]s
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| − | * A single person (thing or concept) may be represented as one (or more) [[Entity | Entities]] in one [[Context]] and (an)other [[Entity | Entity(ies)]] in other [[Context]]s. By linking or "federating" these disparate [[Entity | Entities]] one can gain a more unified view of a given person. [[Context]]s representing different systems, organizations and entire enterprises with widely varying storage and trust models are handled using this [[Entity]] linking approach. For example the person "Bob Smith" could be represented as two [[Entity | Entities]]; the first having "bsmith" as an [[LocalId]] and the second having "bob" as a [[LocalId]]. These two [[Entity | Entities]] may be in the same or in different [[Context]]s.
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| − | * [[Context]]s can be nested (e.g. enterprises have sub-organizations, and there are systems within an enterprise/org, etc.) or related through other means (employment/HR system vs. customer system where same person is a customer and an employee). Thus linking the [[Entity | Entities]] relevant to those contexts provides an overall view of an Entity (or at least a partial "overall" view to those [[Context]]s).
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| − | * The information contained in one [[Entity]] is not necessarily a pure subset of the union of all of the information contained in all of the linked [[Entity | Entities]] representing a person taken together. There is no consistency constraint imposed between the [[Entity | Entities]] of an person. For example, a person could be represented such that their name was Joe in one [[Entity]] in one [[Context]] and JoAnn in [[Entity]].
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| − | == HOWL ==
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| − | <pre>
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| − | </pre>
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| − | == See Also ==
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| − | * [[ContextId]]
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| − | * [[LocalId]]
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| − | ==Links==
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| − | * [http://eclipse.org/higgins Higgins Home]
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