OMG released the standard “Semantics of a Foundational Subset for Executable UML Models” (fUML) in February 2011. This standard defines the precise execution semantics of a foundational subset of UML 2 that includes a subset of UML class diagrams and activity diagrams. Hence, the fUML standard is highly related to AM|USE.
My master’s thesis is concerned with this new standard. The thesis is online available at http://publik.tuwien.ac.at/files/PubDat_196765.pdf. In course of my research activities at the Vienna University of Technology I am currently implementing an AM|USE extension that enables the execution of activity diagrams compliant to the execution semantics defined in OMG’s fUML standard.