A framework for modeling transfer protocols
Computer Networks: The International Journal of Computer and Telecommunications Networking
An ASM Semantics for UML Activity Diagrams
AMAST '00 Proceedings of the 8th International Conference on Algebraic Methodology and Software Technology
Formal semantics for interacting UML subsystems
FMOODS '02 Proceedings of the IFIP TC6/WG6.1 Fifth International Conference on Formal Methods for Open Object-Based Distributed Systems V
Verification of UML-Based Real-Time System Designs by Means of cTLA
ISORC '00 Proceedings of the Third IEEE International Symposium on Object-Oriented Real-Time Distributed Computing
An ASM semantics of token flow in UML 2 activity diagrams
PSI'06 Proceedings of the 6th international Andrei Ershov memorial conference on Perspectives of systems informatics
Model-driven protocol design based on component oriented modeling
ICFEM'10 Proceedings of the 12th international conference on Formal engineering methods and software engineering
Formal methods for specification and analysis of communication protocols
IEEE Communications Surveys & Tutorials
An Approach to Synchronize UML-Based Design Components for Model-Driven Protocol Development
SEW '11 Proceedings of the 2011 IEEE 34th Software Engineering Workshop
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Formal description techniques, such as Lotos and Sdl, have been proven as a successful means for developing communication protocols and distributed systems. Meanwhile the Unified Modeling Language (UML) has achieved wide acceptance. It is, however, less applied in the field of protocol design due to the lack of an appropriate formal semantics. In this paper we propose a formalization technique for UML activity diagrams using the compositional Temporal Logic of Actions (cTLA). We use cTLA because it can express correctness properties in temporal logic and can also be verified formally using several model checking mechanisms. The approach consists of two steps. First, we predefine the formal semantics of the most commonly used UML activity nodes using simple cTLA. In the second step we derive the functional semantics of the activity diagram by mapping it to a compositional cTLA process. We illustrate our approach for a connection set up as an example. Finally we present with the Activity to cTLA generator a tool to automate this process.