Documenting design decision rationale to improve individual and team design decision making: an experimental evaluation

  • Authors:

  • Davide Falessi;Giovanni Cantone;Martin Becker

  • Affiliations:

  • Univ. of Roma "Tor Vergata", DISP Rome - Italy;Univ. of Roma "Tor Vergata", DISP Rome - Italy;Fraunhofer IESE Kaiserslautern - Germany

  • Venue:
  • Proceedings of the 2006 ACM/IEEE international symposium on Empirical software engineering
  • Year:
  • 2006

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Abstract

Individual and team decision-making have crucial influence on the level of success of every software project. Even though several studies were already conducted, which concerned design decision rationale documentation approaches, a few of them focused on performances and evaluated them in laboratory. This paper proposes a technique to document design decision rationale, and evaluates experimentally the impact such a technique has on effectiveness and efficiency of individual/team decision-making in presence of requirement changes. The study was conducted as a controlled experiment. Fifty post-graduate Master students performed in the role of experiment subjects. Documented design decisions regarding the Ambient Intelligence paradigm constituted the experiment objects. Main results of the experiment show that, for both individual and team-based decision-making, effectiveness significantly improves, while efficiency remains unaltered, when decision-makers are allowed to use, rather not use, the proposed design rationale documentation technique.