Difference between Test coverage and RTM?



  • What is difference between Test coverage and Requirement traceability matrix?



  • Test coverage is an umbrella term for any type of objective number on risk investigation some testing endeavor have performed.

    One type of coverage is Requirement / Acceptance Criteria coverage: "Which requirement statements were investigated in a testing session?"

    One way of calculating a number for it is to use the RTM in reverse.

    RMT:

    Req 1 -> Testing idea (TI) 1, TI 3, TI 4

    Req 2 -> TI 2, TI 1, TI 5

    Req 3 -> TI 2, TI 5, TI 1

    Inverting:

    TI 1 -> Req 1, Req 2

    TI 2 -> Req 2, Req 3

    TI 3 -> Req 1

    TI 4 -> Req 1

    TI 5 -> Req 2, Req 3

    If you have exercised the TIs 1 and 4 during a testing session, you can say you (somehow) covered Requirements 1 and 2.



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