UML enumeration can be used simply as a data type for attributes, operations, and parameters without an association line in the diagram. Association from a classifier to an enumeration may be omitted. A specific instance of an object in a system or software application is shown in an object diagram, which is a form of UML (Unified Modeling Language). The relationship says whether an attribute, operation, or operation parameter within a connected classifier uses the enumeration as its type. A new item will be added to the enumeration and you can enter its name.Īn enumeration connects to a class using a UML association relationship. Then click on the Add Item button in the context bar (usually placed below the selected enumeration). First, create a new enumeration or select an existing one. In the diagram editor, you can add other enumeration items using the context bar. ![]() Optionally, a numeric or other type value for the literal may be defined. A meaningful enumeration should contain two and more values.Īn item of enumeration is also called enumeration literal. classes).Īn enumeration is represented by its values. The stereotype caption allows us easy to differ from other element types (e.g. ![]() The enumeration element is decorated with the «enumeration» stereotype. Enums may be used in a flag mode to support bitwise combinations of particular values.Īn enumeration is depicted as a rectangular box with a name and a line-separated list of items. ![]() Use cases are often refined into one or more sequence diagrams. An enumeration is used as a type of attribute, operation, and operation parameters. As sequence diagrams can be used to capture the interaction between objects in the context of a collaboration, one of the primary uses of sequence diagrams is in the transition from requirements expressed as use cases to the next and more formal level of refinement. What is Enumeration in UML Class Diagram?Ī UML enumeration represents a complete list of all values that a given type may acquire.
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