Detecting behavioral conflicts among crosscutting concerns


Durr, Pascal and Bergmans, Lodewijk and Aksit, Mehmet (2007) Detecting behavioral conflicts among crosscutting concerns. In: Remco van Engelen & Jeroen Voeten (Eds.), Ideals: evolvability of software-intensive high-tech systems : a collaborative research project on maintaining complex embedded systems. Embedded Systems Institute, Eindhoven, pp. 55-67. ISBN 9789078679035

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Abstract:Aspects have been successfully promoted as a means to improve the modularization of software in the presence of crosscutting concerns. Within the Ideals project, aspects have been shown to be valuable for improving the modularization of idioms (see also Chapter 1). The so-called aspect interference problem is considered to be one of the remaining challenges of aspect-oriented software development: aspects may interfere with the behavior of the base code or other aspects. Especially interference among aspects is difficult to prevent, as this may be caused solely by the composition of aspects that behave correctly in isolation. A typical situation where this may occur is when multiple advices are applied at the same, or shared, join point. In this chapter we explain the problem of behavioral conflicts among aspects at shared join points, illustrated by aspects that represent idioms: Parameter checking and Error propagation. We present an approach for the detection of behavioral conflicts that is based on a novel abstraction model for representing the behavior of advice. The approach employs a set of conflict detection rules which can be used to detect both generic conflicts as well as domain or application specific conflicts. One of the benefits of the approach is that it neither requires the application programmers to deal with the conflict models, nor does it require a background in formal methods for the aspect programmers.
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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