Abstract: As a kind of wide area and large scale distributed environment, grid has large numbers of resources. The resources are complicated, distributed and dynamic. It is very possible to design a management mechanism in the environment, which can provide information service about the information of resources login, resources discovery and resources state for users and will be shown to users as a single system image. The paper designs a model of information service system in the grid enviourment, and gives a concrete implementation based on Web Service and LDAP.

Key words: Grid, Information service, Web service, XQuery

摘要： 网格作为一种广域的大规模分布式环境，其中包含大量类型复杂、地理分布且动态变化的资源，在这样的环境中如何提供一种管理机制，为用户提供注册、发现资源及反映资源状态等方面的信息服务，最终以单一映像的形式展现在用户面前是非常必要的。为此该文设计了一种网格环境中信息服务系统的设计模型及基于Web Service和轻量目录访问协议(LDAP)的具体实现。

关键词: 网格, 信息服务, Web服务, XQuery