【摘要】 针对科学数据共享工程中元数据地理位置分散、标准不统一、元数据收割自动化程度不高等问题,结合OAI协议简单、低门槛、跨平台、互操作强等特点,把OAI协议应用到大同地区科学数据共享平台的建设中。各数据分中心作为数据提供者,基于XML技术向共享平台发布元数据。共享平台作为服务提供者,定期收割各数据分中心的元数据,加工处理后存储在当地数据库中,为用户提供一站式数据服务。实践证明,该方法操作简单,易于实现,为快速、高效地整合集成科学数据提供了一种有效的方法。更多还原

【Abstract】 There exists some problems in Scientific Data Sharing Program,such as the disperse location and inconsistency of metadata and lower automaticity of metadata harvesting.Considering the simpleness,lower barrier,cross-platform and stronger interoperability of the OAI-PMH,it is applied into the design of Datong Scientific Data Sharing Platform.Each data subcenter is designed to be a data provider,providing metadata for the Sharing Platform based on XML.The service provider is deployed into Sharing Platform,harvesting metadata from each data subcenter periodically.After storing the metadata into local database,One-station data service is provided for users.Practice shows that applying OAI-PMH into the design of Scientific Data Sharing Platform is an effective method to integrate scientific data.更多还原