[目的/意义]探讨资源发现系统元数据方面的问题与解决方案.[方法/过程]从元数据的视角,以当前国内应用最广的4家资源发现系统为研究对象,通过文献资料的收集和内容分析,并结合武汉大学图书馆资源发现系统的调研、测试与实施及电子资源元数据整合与管理的实践,分析当前发现系统的元数据在元数据仓储、元数据质量、元数据测评、服务与合作4个方面存在的问题.[结果/结论]指出资源发现系统的元数据问题不容忽视,并针对元数据描述、元数据仓储、元数据质量管理、元数据测评以及服务与合作5个方面提出解决问题的思考与建议.

[Purpose/significance] The paper probes into the metadata problem and solution of the resource discovery system.[Method/process] By the literature review and content analysis, taking the four widely-used resource discovery systems as the research objects from the perspective of metadata, and combined with the investigation, test and implementation of the resource discovery system project, and the integration and management practice of the electronic resources metadata of Wuhan University Library, this paper analyzes the existing metadata problems of the resource discovery system in China from four aspects of metadata warehouse, metadata quality, metadata evaluation, service and cooperation. [Result/conclusion] It points out that the metadata problems of the resource discovery system can't be ignored and must be solved for its prosperous development, and provides the thought and suggestions from five aspects, which include metadata description, metadata warehouse, metadata quality management, metadata evaluation, service and cooperation.