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  1. OMG Issue

SYSML21 — PayloadFeatureSpecializationPart grammar uses unknown `->` operator

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  • Key: SYSML21-404
  • Status: open  
  • Source: Emerson ( Kent Johnson)
  • Summary:

    The PayloadFeatureSpecializationPart rule in the grammar uses a `->` arrow operator that is never explained in Section 8.2.2.1.1 ("EBNF Conventions") tables 27 and 28. Here is how the rule is written:

    ```
    PayloadFeatureSpecializationPart : Feature =
    ( -> FeatureSpecialization )+ MultiplicityPart?
    FeatureSpecialization*

    MultiplicityPart FeatureSpecialization+
    ```

    What does this mean? Should it be simply removed, or?
  • Reported: SysML 2.0 — Wed, 29 Oct 2025 17:39 GMT
  • Updated: Mon, 3 Nov 2025 21:00 GMT