Architecting and designing : UML 2.5 : Model Elements : Dependency Nodes : Realization Node
  
Realization Node
Realization is a specialized Abstraction dependency between two sets of NamedElements, one representing a specification (the supplier) and the other representing an implementation of that specification (the client).
How to model a Realization relationship
To model a Usage relationship between two classifiers, you create a Realization Node, and connect the Classifiers to the Realization Node (see Realization) through the Realization Node to Client and Realization Node to Supplier relationship.
See also
Dependency Node
Abstraction Node
Usage Node
Go up to
Dependency Nodes