Cris is an internationally recognized expert in architecture modeling languages (UML, SysML), enterprise architecture frameworks (DoDAF, UPDM, TOGAF), and Model-Based Engineering technologies. He chaired large international teams of tool vendors and power users to specify the Unified Modeling Language (UML)
1.x and 2.0 standards for software engineering, and the Systems Modeling Language (SysML)
1.0 standard for systems engineering. In recognition of Cris's contributions to the UML the Object Management Group (OMG) presented him with its Distinguished Service Award in 2000, and in acknowledgement of his contributions to the SysML the International Council on Systems Engineering (INCOSE) presented him with its Outstanding Service Award in 2006. In 2007 Cris accepted the SD Times 100 "Modeling" category award
on behalf of the SysML Partners open source specification project
that he chaired.