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Wireless Communications and Mobile Computing
Volume 2017 (2017), Article ID 4020162, 10 pages
Research Article

Greening Software Requirements Change Management Strategy Based on Nash Equilibrium

1School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China
2School of Science, Harbin Institute of Technology, Harbin 150001, China

Correspondence should be addressed to Xiaohong Su

Received 13 July 2017; Revised 4 September 2017; Accepted 19 September 2017; Published 10 December 2017

Academic Editor: Zhi Liu

Copyright © 2017 Zhixiang Tong et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Recently, green computing has become more and more important in software engineering (SE), which can be achieved by effectively recycling the software system and utilizing the computing resources. However, the requirement change may lead to unnecessary labor and time cost. Moreover, it may also result in the waste of hardware and computing resources once unreasonable requirements are realized. Thus, to perform green computing in SE, it is necessary to propose effective strategies to manage the requirement change. For this decision-making problem, game theoretical methods can be feasible solutions. In this paper, we propose a novel requirement change management approach based on game theory. Specifically, we model the problem as a game between the stakeholders and the developer and devise the payoff matrix between different strategies of the players. We then propose a Nash equilibrium-based game theoretical algorithm to manage requirement change. The evaluation results show that, compared to the exhaustive algorithm, our method not only can achieve almost the same optimal results but also can significantly reduce the computational time complexity. Thus, our method is feasible for a lot of requirement changes and can facilitate the green computing targets from the perspective of software engineering.