Goal modeling: Difference between revisions

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m Goal modeling in UML: clean up, typo(s) fixed: counter point → counterpoint
 
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With the addition of [[misuse case]]s, the notation can model both desired goals and active threats. The misuse case notation shows negative (possibly hostile) stakeholders as the primary actors for the misuse cases; these may be grouped on the right-hand side of the diagram. The notation may assist in discovering suitable mitigating or preventative goals, shown as subsidiary use cases. These often have the aim of improving security, safety, or reliability, which are non-functional goals. [[Non-functional requirement]]s can to some extent be described in use case style using misuse cases to define negative goals; but the (positive) goals thus discovered are often functional. For example, if theft is a threat to [[security]], then fitting locks is a mitigation; but that a door can be locked is a functional requirement.<ref name=MisuseCase>Alexander and Maiden, 2004. Chapter 7. Pages 119-139.</ref>
 
The counter pointcounterpoint is that Use Cases are not from Cognitive Science roots, whereas i* and KAOS are. Indeed, the literature behind Use Cases does not include discussion Goal Intention, Goal Refinement, Ends-Means, does not call out Rasmussen et cetera. There may be a predilection to relate Use Cases to Goals because of the visual metaphor of Goals rather than the semantics of Goal Refinement per Cognitive Science.
 
==Bibliography==