One thought on “How much percentage of coverage is required for a,b,c,d,e levels of DO-254

  1. rezam

    DO-254 does not apply to Level E Design Assurance. If the system safety assessment arrives with such DAL, then no further objectives is needed.

    For Design Assurance Level D and C (DAL-D and DAL-C), all System Level and High Level HW requirements need to be covered via requirements-based-testing.

    For DAL-B and DAL-A; in addition to High Level Requirements coverage as (DAL-D & C), there needs to be coverage of low level requirements as well as Advanced Analysis. Advanced Analysis is similar to software structural coverage.

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