A Framework for Design Tradeoffs

  • Authors:
  • Anneliese Andrews;Ed Mancebo;Per Runeson;Robert France

  • Affiliations:
  • Department of Computer Science, University of Denver, USA;Amazon.com, Seattle, USA;Department of Communications Systems, Lund University, Sweden;Department of Computer Science, Colorado State University, USA

  • Venue:
  • Software Quality Control
  • Year:
  • 2005

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Abstract

Designs almost always require tradeoffs between competing design choices to meet system requirements. We present a framework for evaluating design choices with respect to meeting competing requirements. Specifically, we develop a model to estimate the performance of a UML design subject to changing levels of security and fault-tolerance. This analysis gives us a way to identify design solutions that are infeasible. Multi-criteria decision making techniques are applied to evaluate the remaining feasible alternatives. The method is illustrated with two examples: a small sensor network and a system for controlling traffic lights.