SYSML11 — remove homemade stereotypes

Don't the authors find it embarrassing that their solution to a sample problem isn't even compliant with their own specification? In section B.4.2.1, its states "The «system» and «external» stereotypes are user defined, not specified in SysML,...". I don't care what excuse the authors come up with, "user defined" stereotypes should not be used. The concept of "user defined" or just "making up" stereotypes is inconsistent with the concept of profiles. By standard, «system» and «external» must be in a profile since they are not standard UML keywords nor stereotypes. The authors need to remove homemade stereotypes from their example or add them to the profile. The removal of the homemade stereotypes will likely prove the current specification inadequate.

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