Model-based software Refactoring Driven by Performance Analysis

In order to deal with performance of software systems, it is important to introduce approaches that work in the early phases of the software life-cycle, even before the code is developed. In fact, if performance requirements are not met, there may be negative consequences on significant parts of the project. Some work has been done in the last few years to tackle the problem of automatically interpreting model-based performance analysis results and translating them into architectural feedback. In this context, software and performance models are typical artifacts involved in the interpretation, and architectural feedback consists of refactoring that can take place either on the software or the performance model. We present here this problem context, by means of a unifying framework that supports model-based software refactoring driven by performance analysis.