Glossary
activity diagram (UML)—A process workflow model (diagram) showing the flow from one activity to the next.
aggregation—A special type of abstraction relationship that defines a higher-level entity that is an aggregate of several lower-level entities; a “part-of” type relationship. For example, a bicycle entity would be an aggregate of wheel, handlebar, and seat entities.
association—A relationship between classes (in UML); associations can be binary, n-ary, reflexive, or qualified.
attribute—A primitive data element that provides descriptive detail about an entity; a data field or data item in a record. For example, lastname would be an attribute for the entity customer. Attributes may also be used as descriptive elements for certain ...
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