Gesellschaft für Informatik e.V.

Lecture Notes in Informatics

Software Engineering 2013 P-213, 71-84 (2013).

Gesellschaft für Informatik, Bonn

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Simulizar: design-time modeling and performance analysis of self-adaptive systems

Matthias Becker , Steffen Becker and Joachim Meyer


Modern software systems adapt themselves to changing environments in order to meet quality-of-service requirements, such as response time limits. The engineering of the system's self-adaptation logic does not only require new modeling methods, but also new analysis of transient phases. Model-driven software performance engineering methods already allow design-time analysis of steady states of nonadaptive system models. In order to validate requirements for transient phases, new modeling and analysis methods are needed. In this paper, we present SimuLizar, our initial model-driven approach to model self-adaptive systems and to analyze the performance of their transient phases. Our evaluation of a proof of concept load balancer system shows the applicability of our modeling approach. In addition, a comparison of our performance analysis with a prototypical implementation of our example system provides evidence that the prediction accuracy is sufficient to identify unsatisfactory self-adaptations.

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Gesellschaft für Informatik, Bonn
ISBN 978-3-88579-607-7

Last changed 20.02.2014 13:02:19