The significant problem in traditional RC (Reusable Component) search system is that it can provide just a searching method, or provide few methods without any relationship.

• 传统的构件检索系统只提供一种或几种独立的检索方法，造成了检索的不便和检索方法之间的交选率普遍偏低，所以检索者必须熟悉所有的检索方法，才能得到理想的检索结果。