UML Profiles for Design Decisions and Non-Functional Requirements

  • Authors:
  • Liming Zhu;Ian Gorton

  • Affiliations:
  • National ICT Australia Ltd., Australia/ University of New South Wales;Pacific Northwest National Laboratory, USA

  • Venue:
  • SHARK-ADI '07 Proceedings of the Second Workshop on SHAring and Reusing architectural Knowledge Architecture, Rationale, and Design Intent
  • Year:
  • 2007

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Abstract

A software architecture is composed of a collection of design decisions. Each design decision helps or hinders certain Non-Functional Requirements (NFR). Current software architecture views focus on expressing components and connectors in the system. Design decisions and their relationships with non-functional requirements are often captured in separate design documentation, not explicitly expressed in any views. This disassociation makes architecture comprehension and architecture evolution harder. In this paper, we propose a UML profile for modeling design decisions and an associated UML profile for modeling non-functional requirements in a generic way. The two UML profiles treat design decisions and nonfunctional requirements as first-class elements. Modeled design decisions always refer to existing architectural elements and thus maintain traceability between the two. We provide a mechanism for checking consistency over this traceability. An exemplar is given as a way to demonstrate the feasibility of our approach.