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Thread: difference b/w bug duration and bug detection time?effectiveness and efficiency?

  1. #1
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    difference b/w bug duration and bug detection time?effectiveness and efficiency?

    Question asked by visitor rupa

    Please let me know about the formula so as to find the test efficiency & test effectiveness


  2. #2
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    whats the difference between bug duration and bug detect time?

    whats the difference between bug duration and bug detect time?

    can we ever calculate testing efficiency? if yes how?


  3. #3
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    It's much harder and trickier to find and fix a bug in a live Testing as well Testing and debugging are important parts of development.

    So to save time and make it easy we need to look at both the points: bug duration and bug time.

    Bug duration: you need to check the history of the bug from which drop it lies and which thread it affects. So that testing can be done perfectly.

    Bug Time: earlier and thorough detection and diagnosis of bugs. This leads to easier fixes.

    Test Effectiveness = Loss due to problems / Total resources processed by the system
    Test Effectiveness means, Effectiveness of testing to business

    Test efficiency= (number of tests required / the number of system errors)

    Metric shows the efficiency of tests in uncovering errors.

    Last edited by jainbrijesh; 08-03-2007 at 06:53 AM.

  4. #4
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    thanks for that suhanip..

    but can we calculate testing efficiency based on actuals when we perform unplanned testing?

    Last edited by jainbrijesh; 08-11-2007 at 01:05 AM.

  5. #5
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    Wink Re: metrics

    Hi,
    I am new user of geeks.
    Please help me about QA matrices with example. If possible


  6. #6
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    no For unplanned testing it's just R & D.

    MTTF : Mean Time To Failure
    MTTF = Total Execution Time/Num of Failures observed
    total execution time is the executation time accumulated over all installations that run the sam eproduct. thus if one site has run the product for two months on two computers and another site has run the rpoduct for one month on one computer the total execution time is 2*2 +1*1 = 5months of execution time.
    A simple example How it works:
    MTTF = 40months /10 = 4months

    Last edited by jainbrijesh; 08-03-2007 at 07:19 AM.

  7. #7
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    Re: difference b/w bug duration and bug detection time?effectiveness and efficiency?

    deprication work


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