为可变性而重构:一种可行的方法?

B. Geppert, A. Mockus, F. Rößler
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引用次数: 50

摘要

由于其代码库的大小、复杂性和年龄,遗留系统维护起来困难且昂贵。业务需求要求不断添加新特性并维护旧版本。这一点以及一直存在的对功能破坏的担忧,往往是人们认为逆转设计退化的彻底改变成本太高、风险太大、难以实现的原因。我们研究了对一个大型遗留业务通信产品的一部分进行的重构,其中重构了注册域中的协议逻辑。我们提出了一些关于策略和重构工作对可变性方面的影响的假设,并度量了结果。这个案例研究的结果显示,客户报告的缺陷和做出变更所需的工作显著减少
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Refactoring for changeability: a way to go?
Legacy systems are difficult and expensive to maintain due to size, complexity, and age of their code base. Business needs require continuously adding new features and maintaining older releases. This and the ever present worry about feature breakage are often the reason why the sweeping changes for reversing design degradation are considered too costly, risky and difficult to implement. We study a refactoring carried out on a part of a large legacy business communication product where protocol logic in the registration domain was restructured. We pose a number of hypotheses about the strategies and effects of the refactoring effort on aspects of changeability and measure the outcomes. The results of this case study show a significant decrease in customer reported defects and in effort needed to make changes
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