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In order to represent aggregate relation based on ontology clearly and correctly, the rich semantic properties of aggregate relation in addition to composition and aggregation are elaborated and formalized based on ontology in algebra theory in the paper. However, OWL, as an ontology modeling language, does not provide support for these semantic properties of aggregate relation directly. How to represent...
In aggregate relation, there are properties between whole object and part object because the whole object manages and controls the part object. But, UML does not provide support for these semantic properties in aggregate relation. In order to describe real world clearly and correctly, UML is extended for theirs visual expression and theirs error evaluation rules based on algebraic theory are presented.
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