财经类事实型数据库发现服务的实现方式和关键问题

目的/意义]利用发现系统揭示财经类事实型数据库,有利于用户发现和定位财经类信息资源。方法/过程]通过文献调研、网络调研和厂商咨询,了解财经类事实型数据库发现服务的现状与问题,探索和思考利用发现系统揭示财经类事实型数据的具体实现方式以及存在的关键问题。结果/结论]以本地索引和学科导航为突破口,设计利用发现系统揭示财经类事实型数据库的应用实例,同时针对中央索引的元数据结构及获取方式问题提出可行性建议。

Realization and Key Issues of Discovery Service about Financial and Economical Databases

Purpose/significance]That utilizing discovery service reveals financial and economical databases could help users retrieve that kind of information.Method/process]The situation and problem of discovery service about financial and economical databases are analyzed through literature research, network research and provider consultation. This paper also explores the technical feasibility and key issues about revealing financial and economical databases by the discovery system.Result/conclusion]This paper analyzes application cases of the means of the local index and subject guide, and gives advice about key issues of the central index about the metadata structure and the access method.