Systems Modeling Language (SysML) 2.1 RTF — Open Issues - OMG Issue Tracker

Key: SYSML21-627

Status: open

Source: Fuzzy Bunny Systems ( Richard Wallace)

Summary:

As written:

part def Vehicle {
    variation part engine : Engine {
        // These are variant usages within the variation part "engine",
        // based on the referenced non-variant usages.
        variant smallEngine;
        variant bigEngine;
    }
}

Should be written with the "variation part" for smallEngine and bigEngine:

part def Vehicle {
    variation part engine : Engine {
        // These are variant usages within the variation part "engine",
        // based on the referenced non-variant usages.
        variant part smallEngine;
        variant part bigEngine;
    }
}

Reported: SysML 2.0 — Fri, 8 May 2026 16:08 GMT

Updated: Sat, 23 May 2026 20:39 GMT