Optimal Enhancement and Lifetime of Software Systems: A Control Theoretic Analysis

• 成果类型: Article
• 署名作者: Ji, Yonghua; Kumar, Subodha; Mookerjee, Vijay S.; Sethi, Suresh P.; Yeh, Denny
• 署名单位: University of Alberta; Texas A&M University System; Texas A&M University College Station; Mays Business School; University of Texas System; University of Texas Dallas; Fu Jen Catholic University
• 刊物名称: PRODUCTION AND OPERATIONS MANAGEMENT
• ISSN/ISSBN: 1059-1478
• DOI: 10.1111/J.1937-5956.2010.01215.x
• 发表日期: 2011
• 页码: 889-904
• 关键词: software enhancement; lifetime; features; replacement; optimal control theory

摘要

We develop an optimal control model to maximize the net value provided by a software system over its useful life. The model determines the initial number of features in the system, the level of dynamic enhancement effort, and the lifetime of the system. The various factors affecting these optimal choices are systems characteristics (e.g., complexity, age, quality), user learning, and process maturity. We also consider that there is a time lag between the addition of a feature and the realization of its benefit to users. The basic model is extended to consider the decision of replacing the existing system by a new one.