Present a method to evaluate the performance of the software architecture using UML and Fuzzy formal models

Software architecture, as the first product, directly plays a vital role in the development of complex software systems. It enables us to evaluate assessable system behaviors, i.e. the quality attributes such as security, reliability, usability, flexibility, and efficiency. Architecture evaluation ensures us whether the architecture is capable of maintaining such qualities. The software architecture includes a set of software components, the relationships among them and the externally visible properties of those components. These components can be represented by a variety of techniques such as architectural styles. This study attempts to deal with describing a pragmatic model for the software architecture through using software architecture styles and UML (Unified Modeling Language) diagrams in order to convert the model into an executable model based on Colored Petri net and finally to evaluate it. It becomes possible to assess the efficiency of the software architecture on executable models. It is expected that the efficiency will be improved with the use of fuzzy logic and feedback analysis before implementation steps. Comparative studies show that the fuzzy approach significantly improves non-functional parameters as well as the assessment of these non-functional parameters in a software system.