![](http://toolbox.megamart2-ecsel.eu/sites/default/files/megamart/public/styles/medium/public/content-images/toolbox/chess.png?itok=aEiYWKfM)
CHESS
CHESS implements the CHESS UML/SysML profile, a specialization of the Modeling and Analysis of Real-Time and Embedded Systems (MARTE) profile
![](http://toolbox.megamart2-ecsel.eu/sites/default/files/megamart/public/styles/medium/public/content-images/toolbox/uoc.png?itok=VEsw0O1H)
Collaboro
Collaboro makes language development processes more participative: both developers and users of the language can collaborate together to create and evolve it.
![](http://toolbox.megamart2-ecsel.eu/sites/default/files/megamart/public/styles/medium/public/content-images/toolbox/ssf_0.png?itok=EK_D-UVG)
RCRS
RCRS (the Refinement Calculus of Reactive Systems) is a compositional reasoning framework