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checkFeatureResultRedefinition: If a Feature is a result parameter of an owningType that is a Function or Expression, then, for each direct supertype of its owningType that is also a Function or Expression, it must redefine the result parameter

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SysML2.0: Webel: Suggest the entire description in the specification of whether and when usages MUST redefine inherited parameters needs an overhaul (and the SysML2.0 spec examples, Annex problem, and SysMLv2 GitHub examples are inconsistent anyway).
SysMLv2 Specification and GitHub examples: CONSISTENCY TRACKER: Links to examples where action (usage or definition) in parameters are redefined but the out parameter is not.
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OMG Kernel Modeling Language™ (KerML™) Version 1.0
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About Object Management Group copyright in text extracts quoted from OMG specifications for educational purposes
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checkFeatureResultRedefinition

If a Feature is a result parameter of an owningType that is a Function or Expression, then, for each direct supertype of its owningType that is also a Function or Expression, it must redefine the result parameter

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If an action definition has a single superclassification, then the specialized action definition may declare fewer owned parameters than the general action definition, inheriting any additional parameters from the general definition ...
If an action usage has any type of specialization relationship ... with an action definition or usage ... the rules for the redefinition of the parameters ... are the same as given for the redefinition of parameters of an action definition ...
the KerML checkFeatureParameterRedefinition constraint requires that any owned parameters ... of a ActionUsage redefine corresponding parameters of any Behaviors or Steps it specializes (including ActionDefinitions and ActionUsages)
A calculation definition is a kind of action definition ... that has a distinguished parameter with direction out called the result parameter (which is usually the only out parameter).
A calculation definition specifies a reusable computation that returns a result in the result parameter.
In addition, the result parameter for a calculation definition or usage can be declared as an out parameter using the keyword return instead of out. Note that a calculation definition or usage always has a result parameter, inherited if not owned.
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