A goal-based modeling approach to develop requirements of an adaptive system with environmental uncertainty

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Dynamically adaptive systems (DASs) are intended to monitor the execution environment and then dynamically adapt their behavior in response to changing environmental conditions. The uncertainty of the execution environment is a major motivation for dynamic adaptation; it is impossible to know at development time all of the possible combinations of environmental conditions that will be encountered. To date, the work performed in requirements engineering for a DAS includes requirements monitoring and reasoning about the correctness of adaptations, where the DAS requirements are assumed to exist. This paper introduces a goal-based modeling approach to develop the requirements for a DAS, while explicitly factoring uncertainty into the process and resulting requirements. We introduce a variation of threat modeling to identify sources of uncertainty and demonstrate how the RELAX specification language can be used to specify more flexible requirements within a goal model to handle the uncertainty.

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Publication dateOct 2009
Publication titleModel driven engineering languages and systems : 12th international conference, MODELS 2009, Denver, CO, USA, October 4-9, 2009 : proceedings
EditorsAndy Schürr, Bran Selic
Place of PublicationBerlin (DE)
Number of pages16
ISBN (Electronic)978-3-642-04425-0
ISBN (Print)978-3-642-04424-3
Original languageEnglish
EventACM/IEEE 12th international conference on model driven engineering languages and systems - Denver, CO, United States
Duration: 4 Oct 20099 Oct 2009

Publication series

NameLecture notes in computer science
ISSN (Print)0302-9743


ConferenceACM/IEEE 12th international conference on model driven engineering languages and systems
Abbreviated titleMoDELS 2009
CountryUnited States
CityDenver, CO


  • requirements engineering, goal models, uncertainty, dynamically adaptive systems

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