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Utilizing UML, cTLA, and SRN: An Application to Distributed System Performance Modeling
Abstract
To meet the challenge of conducting quantitative analysis at the early stage of the system development process, this chapter introduces an extensive framework for performance modeling of a distributed system. The goal of the performance modeling framework is the assessment of the non-functional properties of the distributed system at an early stage based on the system's functional description and deployment mapping of service components over an execution environment. System's functional description with deployment mapping has been specified using UML. To analyze the correctness of the UML specification style, we have used temporal logic, specifically cTLA, to formalize the UML model. We have shown in detail how UML models are formalized by a set of cTLA processes and production rules. To conduct the performance evaluation of a distributed system, the UML model is transformed into analytic model SRN. We have specified an automated model transformation process to generate SRN model from UML, which is performed in an efficient and scalable way by the use of model transformation rules.
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