Benchmark file

    A file containing the expected result screen images
    for a test execution.

  Mask

    A specified area of a screen image to be ignored or
    excluded when Result and Benchmark images are
    compared.

  Mask file

    A file used to hide (mask) specified areas of a
    screen image during a comparison between a Result and
    Benchmark file.

  Masking

    A method used to specify areas in a benchmark file
    that are to be hidden during test analysis.

  Result file

    A file containing the result screen images from a
    test execution.

  X Testing

    Testing of software applications employing an X
    Windows interface.