atis

from The Free On-line Dictionary of Computing (8 July 2008)

A Tools Integration Standard
ATIS

   <software, library> (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)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

ATIS
       Alliance  for Telecommunications Industry Solutions (org., USA)