Library /sys$common/syshlp/pca$help.hlb DTM  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    PCA can be used with DIGITAL Test Manager (DTM) to provide
    information on how well the tests managed by DTM cover the
    software being tested, as well as information on the performance
    of that software under verious tests.

    For more information on DTM, refer to the Guide to DIGITAL Test
    Manager. For information on using PCA and DTM together, see
    Chapter 10 in Using VAXset.