V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

SAA
       Standard Application Architecture (IBM)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

SAA
       Standards Association of Australia (org., Australia)


The Free On-line Dictionary of Computing (30 December 2018):

Systems Application Architecture
SAA

    (SAA) IBM's family of standard interfaces
   which enable software to be written independently of
   hardware and operating system.

   (1997-04-25)