Source : Free On-Line Dictionary of Computing

A Tools Integration Standard
     
         (ATIS) An {object-oriented} interface to a
        set of services that allows the saving, accessing and managing
        of information in a common repository.  Developed by {Atherton
        Technology} and {DEC}, based on an extended version of the
        {Software BackPlane}, proposed as an industry standard.
     
        (1994-10-25)