A concern-oriented requirements engineering model

  • Authors:

  • Ana Moreira;João Araújo;Awais Rashid

  • Affiliations:

  • CITI/Dept. Informática, FCT, Universidade Nova de Lisboa, Caparica, Portugal;CITI/Dept. Informática, FCT, Universidade Nova de Lisboa, Caparica, Portugal;Computing Department, Lancaster University, Lancaster, UK

  • Venue:
  • CAiSE'05 Proceedings of the 17th international conference on Advanced Information Systems Engineering
  • Year:
  • 2005

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Abstract

Traditional requirements engineering approaches suffer from the tyranny of the dominant decomposition, with functional requirements serving as the base decomposition and non-functional requirements cutting across them. In this paper, we propose a model that decomposes requirements in a uniform fashion regardless of their functional or non-functional nature. This makes it possible to project any particular set of requirements on a range of other requirements, hence supporting a multi-dimensional separation. The projections are achieved through composition rules employing informal, often concern-specific, actions and operators. The approach supports establishment of early trade-offs among crosscutting and overlapping requirements. This, in turn, facilitates negotiation and decision-making among stakeholders.