Architecting and designing > SysML > Model Elements > Dependency Nodes > Usage Node
  
Usage Node
A Usage is a Dependency in which one NamedElement requires another NamedElement (or set of NamedElements) for its full implementation or operation. The Usage does not specify how the client uses the supplier other than the fact that the supplier is used by the definition or implementation of the client.
How to model a Usage relationship
To model a Usage relationship between two classifiers, you create a Usage Node, and connect the Classifiers to the Usage Node (see Dependency) through the Dependency to Client and Dependency to Supplier relationship.
See also
Dependency Node
Abstraction Node
Realization Node
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Dependency Nodes