Definition:
Concept Number: *449
English Master: Derived adjective
Synonyms, Variations & Acronyms: none
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Note 1. A derived Requirement is a specific Requirement obtained by a Generic-Requirement applied to a local range. For example: if a Generic-Constraint says: we shall always be better in reliability than competitors, then the exact specification, for example:
Reliability:
Scale: Mean Time to Fail.
Past [Competitor X, Current Product] 20,000 hours.
Goal [Our New Product] 30,000 hours.
The Goal Level is the derived Requirement.
Notes:
''1. “Each Solution brings derived Requirements coming from the choice of the Solution itself. For instance, vibration and heat are derived from a Solution using a diesel engine, since an electrical engine would not vibrate but would rather create an electro-magnetic field.”<-Jean-Philippe Larat, info at sodius.com June 2004 INCOSE Tutorial.
2. He uses the apparent synonym “derived impacts” which are a bi-product of the sequence “design analysis” then “Solution investigation” then “derived impacts” ( repeated as necessary). .”<-Jean-Philippe Larat, info at sodius.com June 2004 INCOSE Tutorial.''
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This Concept entered by Diane O'Brien.