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7 ).
4.3.4 Satisfy Relationship
2 In this case, explicitly drawing the relationship would be clearer.
FIGURE 4-7
Example for a namespace containment.
4.3 The Requirement Diagram
req [package] Usability requirements [usage concepts]
?«usabilityRequirement?»
Usage concept
on-board computer
?«usabilityRequirement?»
Usage concept
key deposit
?«usabilityRequirement?»
Usage concept
card reader
?«usabilityRequirement?»
Usage concept
central unit
Defi nition
A satisfy relationship describes that a design element satisfies a requirement.
It is a stereotype ?«satisfy?» of the UML relationship realization.
Each design element in your model has the direct or indirect purpose of satisfying
a requirement to the system. You could also say: The design element realizes
that requirement. For this reason, ?«satisfy?» is a stereotype for the UML relationship
realization . If this relation is modeled, then it can be seen what effect changes to
the design will have to the requirements. Vice-versa, you can identify the design
elements concerned by changes to the requirements.


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