Scientific Programming

Scientific Programming / 2004 / Article
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AxGrids 2004

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Volume 12 |Article ID 170481 |

Simon Miles, Juri Papay, Terry Payne, Michael Luck, Luc Moreau, "Towards a Protocol for the Attachment of Metadata to Grid Service Descriptions and Its Use in Semantic Discovery", Scientific Programming, vol. 12, Article ID 170481, 11 pages, 2004.

Towards a Protocol for the Attachment of Metadata to Grid Service Descriptions and Its Use in Semantic Discovery

Received24 Jan 2005
Accepted24 Jan 2005


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 an api for 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.

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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