PRIMAmob-UML: a methodology for performance analysis of mobile software architectures

ABSTRACT

Different paradigms (client-server, mobility based, etc.) have been suggested and adopted to cope with the complexity of designing the software architecture of distributed applications for wide area environments, and selecting the "best" paradigm is a typical choice to be made in the very early software design phases. Several factors should drive this choice, one of them being the impact of the adopted paradigm on the application performance. Within this framework our contribution is as follows: we apply an extension of UML to better modelling the possible adoption of mobility-based paradigms in the software architecture of an application; we extend classical models, like queueing networks models and execution graphs, to cope with mobile architectures; we introduce a complete methodology that, starting from a software architecture described using this extended notation, generates a performance model (namely an Extended Queueing Network augmented with mobility features) that allows the designer to evaluate the convenience of introducing logical mobility into a software application.

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INDEX TERMS

Keywords:
UML, architecture modelling, distributed systems, mobile components, performance analysis