Iterative reengineering of legacy functions

Proceedings IEEE International Conference on Software Maintenance. ICSM 2001 Pub Date : 2001-11-07 DOI:10.1109/ICSM.2001.972780

A. Bianchi, D. Caivano, V. Marengo, G. Visaggio

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引用次数: 22

Abstract

This paper describes a process of gradual reengineering of the procedural components of a legacy system. The process is integrated and completed by the data reengineering process analyzed in a previous paper by the same authors. The proposed method enables the legacy system to be gradually emptied into the reengineered system, without needing to either duplicate the legacy system or freeze it. The process consists of evolving the legacy system components toward firstly a restored system and then toward the reengineered system. Meanwhile, the legacy system can coexist with both the restored and the reengineered parts. By the end of the process, a single system will be in existence: the reengineered one. The method has been applied to reengineer a real system and demonstrated its ability to: support gradual reengineering, maintain the system at work during the process, minimize the need to freeze maintenance requests, renew the operative environment of the reengineered system with respect to the legacy system and, finally, eliminate all the system's aging symptoms.

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遗留功能的迭代再造

本文描述了对遗留系统的程序组件进行逐步再工程的过程。该过程由同一作者在前一篇论文中分析的数据再造过程集成和完成。所建议的方法使遗留系统能够逐渐被清空到重新设计的系统中，而不需要复制遗留系统或冻结它。该过程包括将遗留系统组件演化为首先恢复的系统，然后再演化为重新设计的系统。同时，遗留系统可以与修复的部分和重新设计的部分共存。在这个过程的最后，一个单一的系统将会存在:一个重新设计的系统。该方法已被应用于一个实际系统的再设计，并证明了它的能力:支持渐进性的再设计，在过程中保持系统的工作状态，最大限度地减少冻结维护请求的需要，更新再设计系统相对于遗留系统的运行环境，并最终消除系统的所有老化症状。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Proceedings IEEE International Conference on Software Maintenance. ICSM 2001

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