SYSE.12:10 - Rationale
Engineering capability is a holder’s ability to perform a named Work family or produce a result class within a declared envelope, measure set, qualification window, and currentness condition. A chosen Method may constrain that envelope or be tested for fit, but it is not the capability’s target. A platform is useful only through actual relations to practitioner Work. Engineers can make and assess claims about the platform’s architecture, configuration, evidence, use, and evolution for that Work.