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

VML
       Vector Markup Language (XML, MS, Macromedia, ..., PGML, SVG)


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

VML

   VODAK Model Language.  Language for an extensible
   object-oriented database.

   ["Object-Oriented Modeling for Hypermedia Systems Using the
   Object-Oriented VODAK Model Language (VML)" Wolfgang Klas et
   al, in Object-Oriented Database Management Systems, NATO ASI
   Series, Springer 1993].

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