CMA
CMA, acronym of Completeness Metric Analyzer, is a command-line tool for runtime monitoring of timing and State Machine status
EMF Views
EMF Views is an Eclipse plugin that brings the concept of database views to the modeling world
Modelio Constellation
Constellation organizes and manages collaborative (distributed) World Wide Modeling projects,
PauWare
PauWare engine is a Java API, i.e., a set of Java classes and interfaces making up an execution engine for State Chart XML (SCXML) and UML State Machine Diagrams