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  • October 2, 2016 at 2:57 am #13842

    Archana
    @archana
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    When you start testing of a new application, do you have a rate of finding defects in mind (say 1 defect every 10 minutes on an average)?
    Do you focus on that?
    Do you calculate the rate at the end of testing?
    October 6, 2016 at 9:37 pm #13877

    Jesper
    @jesper-lindholt-ottosen
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    I don’t focus on defect detection rates or Meantime between failures MTBF. What mostly interests me is MTTR – mean time to recover, ie how fast the defect turn around time is. Sometimes it can be interesting to look at how many “iterations” a defect have before it is closed, but that depends on the number of dev teams.

    I wrote about the rate of active defects here:

    http://www.ministryoftesting.com/2014/04/daily-defect-count-image-camel/ 
    October 12, 2016 at 3:11 pm #13942

    Archana
    @archana
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    Pretty interesting article that.

    I too do not focus on defect detection rate during testing. But at the end of the testing, I do check it once.
    October 19, 2016 at 10:36 am #14004

    Augusto
    @augusto-evangelisti
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    I tend to focus more on delivering value to my customers

    Ultimate Guide to Reducing the Amount of Defects and other Waste in your Product
    November 14, 2016 at 10:23 pm #14323

    Alin
    @groza-alin88
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    Hi Archana,

    I don’t use any defect detection rate. Personally, I don’t think it is ok to define this rate because defects have different severity. You can find 10 minor bugs in one day and 2 major bugs in the next day. Of course, there can be used metrics with various weights for defects characteristics (severity, likelihood etc.) but you risk focusing more on this metrics/rates and less on testing and quality.

    I have seen managers that use this defect detection rate as a target for the testing team during a specific iteration/sprint, but the rate is set by the managers and not by the testers

    Regards,
    Alin
    April 27, 2017 at 10:44 am #16102

    Ronan
    @ronan
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    Good post on it here too:

    Defect Detection Percentage: handle with care!

     
    May 10, 2017 at 1:49 pm #16247

    Tassawer
    @tassaweramin
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    @ronan an extremely interesting article on DDP.
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