摘要： 分析了分别基于XML，RDF(S)，DAML+OIL三者描述组件之间区别，提出采用DAML+OIL的方法来描述组件以及组件之间的关系 ,使组件具有精确的语义，并且为以后基于语义和具有推理能力的搜索奠定了基础。最后简要介绍了分别基于这3种方法组件的搜索原理。

关键词: 可扩展标记语言, 资源描述框架, DAML+OIL, 组件, 语义Web

Abstract: This article analyse the difference of means for descrbing component between XML,RDF(S) and DAML+OIL. It decides that making use of DAML+OIL to describe components and their relation, so the component has more semantic and make the fundation for search based on semantic.At last it intruduces the search principle for component based on the three ways.

中图分类号: 

• TP393.09