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

SSI
       [Schwedisches Strahlenschutzinstitut] (Sweden, org.)


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

SSI
       Server Side Include [script] (HTTPD, CGI)


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

SSI
       Small Scale Integration


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

SSI
       Software Systems Interface


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

SSI

   1.  small scale integration.

   2.  A kind of PDP-11(?).

   [What kind?]

   3.  server-side include.

   (1996-09-08)