the traditional component description and retrieval way lacks of semantic description of the information, it is hard to find the exact component matching to the requirements, and therefor.
传统的构件描述与检索方式,由于缺乏构件的语义信息描述,用户难以精确检索到与需求匹配的构件资源,所以不能很好地实现资源共享和复用的目的。