Software reuse is an important part in modern software engineering science system, and it is also the future development direction of software development. Software reuse technology based on component can greatly reduce the time and cost required for the software development, and improve the maintainability, flexibility of software, shorten the development cycle of software applications, it is one of the hot spot of current software. In this paper we research the design method of software component which can be general used in the management application system design based on PB.%软件复用是现代软件工程科学体系中的重要部分，也是未来软件开发的发展方向。基于部件的软件复用技术可以大大减少软件开发所需的时间和费用，提高软件的可维护性、灵活性，缩短应用软件的开发周期，是目前软件业的热点之一。本文研究可以通用于基于PB的管理系统设计的软部件的设计方法。
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