Eclipse Papyrus-xtUML provides a dialect of UML modeling based upon a published and accepted methodology called Shlaer-Mellor. The method and tool has been evolving since the 1990s. Papyrus-xtUML forms a dialect of UML that fits nicely as a peer to UML-RT (Papyrus-RT), SysML (Papyrus-SysML) and other Papyrus UML/SysML derivatives. Papyrus-xtUML has differentiated strength in the areas of precise semantic modeling, execution and translation.
Papyrus-xtUML currently has the following features: xtUML editor, interpretive model execution ("Verifier") and several model compilers including C, C++, SystemC, Java, HTML, DocBook.