Copyright © 2008 The Institute of Electronics, Information and Communication Engineers
Special Section on Knowledge-Based Software Engineering -- Papers -- Software Engineering |
Identifying Stakeholders and Their Preferences about NFR by Comparing Use Case Diagrams of Several Existing Systems
1 The authors are with the Graduate School of Science and Technology, Shinshu University, Nagano-shi, 380–8553 Japan. E-mail: kaiya{at}cs.shinshu-u.ac.jp
| Abstract |
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We present a method to identify stakeholders and their preferences about non-functional requirements (NFR) by using use case diagrams of existing systems. We focus on the changes about NFR because such changes help stakeholders to identify their preferences. Comparing different use case diagrams of the same domain helps us to find changes to be occurred. We utilize Goal-Question-Metrics (GQM) method for identifying variables that characterize NFR, and we can systematically represent changes about NFR using the variables. Use cases that represent system interactions help us to bridge the gap between goals and metrics (variables), and we can easily construct measurable NFR. For validating and evaluating our method, we applied our method to an application domain of Mail User Agent (MUA) system.
Key Words: non-functional requirements (NFR), GQM, stakeholders and their preferences, use case diagrams
Manuscript received July 2, 2007. Manuscript revised October 12, 2007.