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Thread: Measurement

  1. #1
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    Measurement

    I would be very interested to hear experiences of how:-

    1)people go about measuring their testing

    2)the accuracy of test measurement

    3)the effect it has on subsequent development

    4)whether or not it truly can be used to influence the attitude of the business toward IT and testing.

    ....not asking much. Phew!

  2. #2
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    Re: Measurement

    Stracha:

    What things do you want to measure?

    Test/Dev Effort? By Tasks?
    Defects Quantity? By Severity?
    Defects Density?
    Test Efficiency?
    Test Coverage?
    Test Documentation?

    You can measure a lot of aspects in the test. You need to determine first, what is useful to your management...

    Let me know where do you need more detail.

    Best Regards,
    Sebastian

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    Re: Measurement

    Here is just a few answers to a big issue:

    For the static test methods (i.e formal reviews) we are measuring all defects that are found. They are gathered during a project and can then be a foundation for deeper analysis of the quality.

    In a similar way we are recording all defects found during unit tests and higher tests. By using a method where we compare the introduction and the appearance of the errors, it is possible to calculate a yield for each phase in the development cycle.

    During system tests we also keep track of the requirement coverage. If our test cases are good, and if we reach 100% requirement coverage, we will have a reasonably good confidence in the product.

    And finally, yes - it has effect on the development process. Although it may take some time, things getting better.

    Best regards Björn

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  4. #4
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    Re: Measurement

    Bjorn - Thanks.
    I know this may be a bit vague, how have you used your test mesurements to influence the decision makers[the business users, the client].
    Have you had the opportunity to gather statistics over time to see historical change?

  5. #5
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    Re: Measurement

    <BLOCKQUOTE><font size="1" face="Verdana, Arial, Helvetica">quote:</font><HR>Originally posted by bagpuss:
    Bjorn - Thanks.
    I know this may be a bit vague, how have you used your test mesurements to influence the decision makers[the business users, the client].
    Have you had the opportunity to gather statistics over time to see historical change?
    <HR></BLOCKQUOTE>

    I have done a few analysis to be able to see changes over time and it is quite interesting. Unfortunately, we usually don't have the time to make deeper analysis but the measuement data is still available - so maybe in the future it will be more analysis.

    About management - it is usually not a problem. Since I have a specialist role in testing they will listen to me. It is not hard to convince them about necessary changes based on measuements. I have done it several times. A few examples are

    1) Handling of defects and defect tracking.
    2) The importance of unit tests.
    3) The importance of code reviews.

    Best regards Björn



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