Defect Probability

    DEFECT PROBABILITY, also known as Defect Visibility or Bug Probability or Bug Visibility,  indicates the likelihood of a user encountering the defect / bug.

    • High: Encountered by all or almost all the users of the feature
    • Medium: Encountered by about 50% of the users of the feature
    • Low: Encountered by very few users of the feature

    Defect Probability can also be denoted in percentage (%).

    The measure of Probability/ Visibility is with respect to the usage of a feature and not the overall software. Hence, a bug in a rarely used feature can have a high probability if the bug is easily encountered by users of that particular feature. Similarly, a bug in a widely used feature can have a low probability if the users rarely detect it even while using that particular feature.

    Last Updated on August 31, 2020 by STF