Precision Graphics Markup Language
Precision Graphics Markup Language (PGML) is an XML-based language for representing vector graphics. It was a W3C draft, but was not adopted as a recommendation.
PGML and VML, another XML-based vector graphics language, were later joined and improved upon to create SVG.
Applications
The ArgoUML CASE tool uses PGML as an auxiliary format to XMI, for storing UML diagrams.