A framework to simulate UML models: Moving from a semi-formal to a formal environment

This paper presents a simulation framework for UML models based upon a mapping schema of UML metamodel elements into Abstract State Machines (ASMs). Structural model elements are translated into an ASM vocabulary as collections of domains and functions, whereas the dynamic view is captured by multi-agent ASMs reflecting the behavior modeled by UML state machines. In the toolkit presented, input UML models can be drawn using any UML CASE Tool able to produce the XMI format for diagrams. This textual representation is exploited to initialize the ASM model for UML state machines which can be symbolically executed by AsmGofer, an advanced Abstract State Machine programming system. Tool features are described through the simulation of a simple stack-printer UML model showing the interactions among state machines by signals exchange and operation calls.