开放资源互操作协议OAI研究  

Interoperability Protocol OAI of Open Digital Resources

作　　者：郑小惠[1] 张海涛[1] 

机构地区：[1]清华大学图书馆,北京100084

出　　处：《图书馆杂志》2004年第1期55-58,共4页Library Journal

摘　　要：随着数字图书馆的发展,各种资源间的互操作性也变得越来越重要,人们也一直致力于对分布式资源进行统一检索的开发。要实现这一目标,归纳起来有三种方式:代理模式,即通过检索代理对不同的目标源分别检索,然后对检索结果统一处理;联邦检索模式,即各个目标源严格遵守统一标准或协议从而实现底层的跨库检索;采集模式,即通过元数据采集协议将分布的元数据集中提供检索。本文对这三种模式进行了对比介绍,并对国际上应用越来越广泛的 OAI 元数据互操作机制及应用进行了详细介绍和讨论。The interoperability of digital libraries is becoming more and more important with the de- velopment of digital resources.Generally,three types are categorized for current DL interoperability: Gathering,Federated and Harvesting.Each type has its advantages and disadvantages.Gathering trans- lates the user query into acceptable queries for each DL and merges the hits into one page that is present- ed to the user.In harvesting approach,a service provider harvests metadata from data providers using a predefined protocol.Federated type needs all participants use the same DL protocol such as Z39.50. These approaches are compared briefly and particularly federated approach using OAI protocol is dis- cussed.

关 键 词：数字图书馆 元数据互操作 OAI “开放文档先导” 数据库检索 跨库检索 元数据采集 

分 类 号：G250.76[文化科学—图书馆学]