Towards a Protocol for the Attachment of Semantic Descriptions to Grid Services
Towards a Protocol for the Attachment of Semantic Descriptions to Grid Services
复制标题
制定一个将语义描述附加到网格服务的协议
DOI：
10.1007/978-3-540-28642-4_27
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
L. Moreau
中科院分区：
文献类型：
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作者：
S. Miles;J. Papay;T. Payne;Keith S. Decker;L. Moreau
大规模开放分布式系统中的服务发现很困难，因为需要从潜在的巨大可能性池中过滤出适合手头任务的服务。语义描述被认为是表达服务发现的关键，但最常用的服务描述和注册协议并不以通用方式支持此类描述。在本文中，我们提出了一种协议、其实现和 API，用于注册语义服务描述和其他任务/用户特定的元数据，并根据这些元数据发现服务。我们的方法基于附加结构化和非结构化元数据的机制，我们证明该机制适用于多种注册表技术。结果是一个极其灵活的服务注册表，它可以成为复杂的语义增强服务发现引擎的基础，而服务发现引擎是语义网格的重要组成部分。
Service discovery in large scale, open distributed systems is difficult because of the need to filter out services suitable to the task at hand from a potentially huge pool of possibilities. Semantic descriptions have been advocated as the key to expressive service discovery, but the most commonly used service descriptions and registry protocols do not support such descriptions in a general manner. In this paper, we present a protocol, its implementation and anapifor registering semantic service descriptions and other task/user-specific metadata, and for discovering services according to these. Our approach is based on a mechanism for attaching structured and unstructured metadata, which we show to be applicable to multiple registry technologies. The result is an extremely flexible service registry that can be the basis of a sophisticated semantically-enhanced service discovery engine, an essential component of a Semantic Grid.