Library /sys$common/syshlp/dtm$dw_helplib.hlb terms, library  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  A OpenVMS directory containing the information Digital
  Test Manager needs to manage a test system.

  The Digital Test Manager library contains the control
  file, collection subdirectories, result files,
  difference files, and, optionally, benchmark and
  session files.