This paper at first introduced the description, classification, storage and search of reused component, then give a practical procedure of assemble of reused component, and also shown an example of a reusable component of scanning Powerbuilder lib.

• 首先简要介绍了可重用组件的描述、分类、存储和检索，然后给出了一种简明的可重用组件组装的过程，并以一个实现扫描库文件等的组件为实例，阐明了利用可重用组件构造软件系统的过程。