| 基于OAI-PMH的元数据动态更新模型的设计 |
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| 引用本文： | 王秀慧,刘立云,张凤英.基于OAI-PMH的元数据动态更新模型的设计[J].雁北师范学院学报,2011,27(2). |
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| 作者姓名： | 王秀慧 刘立云 张凤英 |
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| 作者单位： | 山西大同大学教育科学与技术学院,山西大同,037009 |
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| 基金项目： | 山西大同大学青年科研基金资助项目 |
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| 摘 要： | 针对OAI-PMH中服务提供方在收割数据提供方元数据时的时间滞后问题和资源分配不合理的问题,提出了一种可动态更新的元数据同步模型。根据数据提供方元数据的更新周期,结合用户对元数据的访问量,来动态地调整服务提供方收割时间,以保证在合理利用系统资源的前期下,有效地实现数据提供方和服务提供方元数据的同时更新。
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| 关 键 词： | OAI 元数据 服务提供方 数据提供方 动态更新 |
The Design of Metadata Dynamic Update Model based on OAI-PMH |
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| WANG Xiu-hui,LIU Li-yun,ZHANG Feny-ying.The Design of Metadata Dynamic Update Model based on OAI-PMH[J].Journal of Yanbei Teachers College,2011,27(2). |
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| Authors: | WANG Xiu-hui LIU Li-yun ZHANG Feny-ying |
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| Institution: | WANG Xiu-hui,LIU Li-yun,ZHANG Feny-ying(School of Education Science and Technology,Shanxi Datong University,Datong Shanxi,037009) |
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| Abstract: | According to the problems of time delay and irrational resources allocation while metadata of Data Provider is being harvested by Service Provider in OAI-PMH,a metadata synchronization model which can be updated dynamically is designed.The harvest time of Service Provider is dynamically adjusted by metadata update period combined with the quantity of users ＇ access.By this way,the system resources can be properly used and most importantly,the metadata consistency can be kept between Data Provider and Service Provider. |
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| Keywords: | OAI metadata service provider data provider dynamic update |
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