High Quality Content by WIKIPEDIA articles! An entity is something that has a distinct, separate existence, though it need not be a material existence. In particular, abstractions and legal fictions are usually regarded as entities. In general, there is also no presumption that an entity is animate. Entities are used in system developmental models that display communications and internal processing of, say, documents compared to order processing. An entity could be viewed as a set containing subsets. In philosophy, such sets are said to be abstract objects

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