Refactoring-safe modeling of aspect-oriented scenarios

Gunter Mussbacher, Daniel Amyot, Jon Whittle

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

4 Citations (Scopus)


Aspects use pointcut expressions to specify patterns that are matched against a base model, hence defining the base locations to which aspects are applied. The fragile pointcut problem is well-known in aspect-oriented modeling, as small changes in the base may lead to non-matching patterns. Consequently, aspects are not applied as desired. This is especially problematic for refactoring. Even though the meaning of the model has not changed, pointcut expressions may no longer match. We present an aspect-oriented modeling technique for scenarios that is refactoring-safe. The scenarios are modeled with Aspect-oriented Use Case Maps (AoUCM), an extension of the recent ITU standard User Requirements Notation. AoUCM takes the semantics of the modeling notation into account, thus ensuring pointcut expressions still match even after, for example, refactoring a single use case map into several hierarchical maps. Furthermore, AoUCM allows the composed model to be viewed without having to resolve complex layout issues. The general principles of our approach are also applicable to other aspect-oriented modeling notations.

Original languageEnglish
Title of host publicationModel Driven Engineering Languages and Systems - 12th International Conference, MODELS 2009, Proceedings
Number of pages15
Volume5795 LNCS
Publication statusPublished - 2009
Externally publishedYes
EventACM/IEEE International Conference on Model Driven Engineering Languages and Systems 2009 - Denver, United States of America
Duration: 4 Oct 20099 Oct 2009
Conference number: 12th (Proceedings)

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5795 LNCS
ISSN (Print)03029743
ISSN (Electronic)16113349


ConferenceACM/IEEE International Conference on Model Driven Engineering Languages and Systems 2009
Abbreviated titleMoDELS 2009
Country/TerritoryUnited States of America
Internet address


  • Aspect-oriented Use Case Maps
  • Aspects-oriented Modeling
  • User Requirements Notation

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