Abstract

In November 2008, the User Requirements Notation (URN) was approved as Recommendation Z.151 by the Standardization Sector of the International Telecommunication Union (ITU-T). URN is the first and currently only standard that supports both goal-oriented and scenario-based modeling for requirements engineering activities. The Aspect-oriented URN (Ao URN) is a recent extension of URN that combines goals, scenarios, and aspects in one framework. Ao URN is a candidate for future versions of the URN standard. We first summarize the basic concepts and notation of Ao URN and then discuss advanced features of Ao URN that are necessary for large-scale modeling. Based on our experience with Ao URN modeling, we present a list of requirements including rationale for an aspect-oriented extension of Z.151 that succinctly expresses the required features to evolve URN into a complete aspect-oriented modeling framework.

-- Daniel Amyot - 05 Nov 2009

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