This sites aims at defining a UML 2.0 real time profile based on SDL.

UML stands for Unified Modeling Language and is standardized by the Object Management Group: OMG.

SDL stands for Specification and Description Language and is standardized by the International Telecommunication Union: ITU-T Study Group 17.

The result of this work will be published as an SDL-RT specification.
SDL-RT is free and available on http://www.sdl-rt.org.