ITR/SY: Features, Components, and Legacy Systems

提案编号：0220166标题：ITR/SY功能、组件和遗留系统PI：WPI计算机科学部George T.Heineman遗留系统是任何正在使用且必须发展以适应不断变化的条件的软件系统。这些系统必须重新设计，因为随着时间的推移，每次后续维护都会降低系统的发展能力。该研究以一种新颖的方式将特征和软件构件的概念结合起来，从遗留系统中提取基于特征的软件构件。首先，引出目标遗留系统的特征，并使用现有的代码分析工具，识别与这些特征相关联的代码。这项任务是由回归测试套件实现的，许多遗留系统已经拥有回归测试套件，以确保在系统升级时正常运行。其次，从遗留系统重构软件组件。简而言之，分析由执行跟踪生成的数据是为了进化目的。这项研究将为组织逐步实现其软件代码库的现代化提供一个可行的长期战略。将定义和应用一种再工程方法。将根据财务公司遗留系统取得的初步成功，制定相应的成本/节约模式。这一方法将被打包和传播，以确保拥有遗留系统的其他组织能够轻松受益于这项研究的结果。

Proposal Number: 0220166 Title: ITR/SY Features, Components, and Legacy Systems PI: George T. Heineman, Computer Science Department, WPI A legacy system is any software system that is in use and must evolve to meet changing conditions. These systems must be re-engineered because over time, the ability to evolve the system decreases with each successive maintenance. The proposed research combines the concepts of features and software components in a novel way to extract feature-based software components from a legacy system. First, the features of the target legacy system are elicited and using existing code profiling tools, the code associated with these features is identified. This task is made possible by the regression test suite that many legacy systems already have to ensure proper functioning as the system is upgraded. Second, software components are refactored from the legacy system. In short, the data generated by execution traces is analyzed for evolution purposes. The research will provides a viable long-term strategy for an organization to incrementally modernize its software code base. A reengineering methodology will be defined and applied. A corresponding cost/savings model will be developed based upon preliminary success with the legacy system for a financial company. The methodology will be packaged and disseminated to ensure other organizations with legacy systems can easily benefit from the results of this research.