Concept

Dependency (UML)

Summary
In the Unified Modeling Language (UML), a Dependency is a relationship that shows that an element, or set of elements, requires other model elements for their specification or implementation. The element is dependent upon the independent element, called the supplier. Two or more elements in this relationship are called tuples. In the UML, this is indicated by a dashed line pointing from the dependent (or client) to the independent (or supplier) element. The arrow representing a Dependency specifies the direction of a relationship, not the direction of a process. Standard predefined dependencies UML - defined dependencies include :
  • «call2» UML2: The client (an operation) may call the supplier (an operation)
  • «create» UML2: The client (a classifier) may create instances of the supplier (a classifier)
  • «derive» UML2: The client (e.g., attribute value, link) may be computed from the supplier(s)
  • «instantiate» UML2: Operations of the client (a classi
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