Reports

October 2003: Grid Resource Specification

Following on from the Grid Application Framework document, the "Grid Resource Specification" is intended for globally and uniquely identifying resources on the Grid, along with associated metadata. The specification is an extension of the DataRef, proposed in our original paper, to all types of resources. This work was carried out in collaboration with the North-East Regional e-Science Centre (NEReSC).

August 2003 A Grid Application Framework based on Web Services Specifications and Practises

In collaboration with the North-East Regional e-Science Centre (NEReSC), we have been looking at the relationship between Web Services technologies, OGSI and Grid requirements. Here's the abstract: "There has been a lot of discussion in the community concerning the relationship between Web and Grid Services. This document presents an analysis of the Grid architecture and its relationship to the Web Services Architecture. It presents our views on the current version of the OGSI specification and then goes on to propose a different mapping of the Grid infrastructure requirements to Web Services specifications and practises. The aim is to design an alternative mapping that captures the same Grid requirements, but fits more closely with conventional Web Services specifications and practises. It is not in our intentions to create an alternative to OGSI but, rather, provide an analysis of the issues with the current version of the specification and use it as input to future discussions within the community."

June 2003 Introducing BPEL4WS

This report introduces the key features of Business Process Execution Language for Web Services (BPEL4WS), and shows how it builds on the features offered by WS-Coordination and WS-Transaction to support the reliable orchestration of business processes.

May 2003 Introducing WS-Transaction

This report introduces the first publicly available WS-Coordination based protocol: Web Services Transaction, and shows how WS-Transaction provides transactional coordination for Web services. We shall also show how transactional support for Web services can be used to provide the basis for higher-level business process management and workflow technology.

April 2003 Introducing WS-Coordination

This report introduces the underlying concepts of Web Services Coordination, and shows how a generic coordination framework can be used to provide the foundations for higher-level business processes.