遗留系统：在分布式和面向对象计算环境中通过集成来管理演进。
Legacy systems: managing evolution through integration in a distributed and object-oriented computing environment.
作者信息
Lemaitre D, Sauquet D, Fofol I, Tanguy L, Jean F C, Degoulet P
机构信息
Medical Informatics Department, Broussais University Hospital, Paris.
出版信息
Proc Annu Symp Comput Appl Med Care. 1995:132-6.
Legacy systems are crucial for organizations since they support key functionalities. But they become obsolete with aging and the apparition of new techniques. Managing their evolution is a key issue in software engineering. This paper presents a strategy that has been developed at Broussais University Hospital in Paris to make a legacy system devoted to the management of health care units evolve towards a new up-to-date software. A two-phase evolution pathway is described. The first phase consists in separating the interface from the data storage and application control and in using a communication channel between the individualized components. The second phase proposes to use an object-oriented DBMS in place of the homegrown system. An application example for the management of hypertensive patients is described.
遗留系统对组织至关重要，因为它们支持关键功能。但随着时间的推移以及新技术的出现，它们会过时。管理其演进是软件工程中的一个关键问题。本文介绍了巴黎布罗赛医院开发的一种策略，以使一个用于医疗保健单位管理的遗留系统向新的最新软件演进。描述了一个两阶段的演进路径。第一阶段包括将接口与数据存储和应用控制分离，并在各个组件之间使用通信通道。第二阶段建议使用面向对象的数据库管理系统来取代自研系统。描述了一个高血压患者管理的应用示例。
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