Ali, Raian and Franzen, Anders and Griggio, Alberto and Giorgini, Paolo (2009) Modeling and Analyzing Contextual Requirements. UNSPECIFIED. (Unpublished)
Abstract
The relation between contexts and requirements can be very complex to analyze. A context can motivate a requirement, a requirement can be satisfied only in a specific context, and a context can influence the quality of each possible alternative of satisfying a requirement. To capture and deeply understand this relation, we need to start from the reasons of a requirement, namely stakeholders goals, and analyze at this level the system variability with respect to the context. In this paper, we propose a goal-based approach to model and analyze contextual requirements. We adopt Tropos goal modeling framework where we introduce contextual variation points and provide a set of constructs to hierarchically analyze contexts. We also articulate a new problem, the context interaction problem; we study its influence on both monitoring and functional requirements, and we finally provide a SAT-based approach to deal with it. We show the process for creating our models and illustrate our approach on a museum-guide scenario.
Actions (login required)
![[img]](http://eprints.biblio.unitn.it/style/images/fileicons/application_pdf.png)
