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Guideline (Beginner,Concept) A Goal can only be decomposed using Means-Ends Links. Open Version
Discussion: The Means-End Link is a type of a relationship that indicates an End (Goal) and it’s Means (Task), or how to achieve the Goal. Using a Means-End Link indicates that the Means fulfills the goal. This indicates that an alternative which would satisfy the goal has been discovered. Further alternatives should often be sought. Contribution Links such as Help, Some+, etc. are used with Softgoals, not with Goals. Also, Decomposition Links are used to decompose a Task, not a Goal. Refer to Guideline 5.3.1 for additional discussion on using Means-Ends with Goals.
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