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The OGSA-DAI Project

The aim of the OGSA-DAI project is to develop middleware to assist with access and integration of data from separate sources via the grid. The project was conceived by the UK Database Task Force and is working closely with the Open Grid Forum DAIS-WG. OGSA-DAI is funded as one of three OMII-UK sites which together aim to provide software and support to enable a sustained future for the UK e-Science community and its international collaborators. The project works closely with the Globus, OMII-Europe, NextGRID, SIMDAT and BEinGRID teams to ensure the OGSA-DAI software works in a variety of grid environments.

OGSA-DAI Software

OGSA-DAI is a middleware product which supports the exposure of data resources, such as relational or XML databases, on to grids. Various interfaces are provided and many popular database management systems are supported. The software also includes a collection of components for querying, transforming and delivering data in different ways, and a simple toolkit for developing client applications. OGSA-DAI is designed to be extendable, so users can provide their own additional functionality.

OGSA-DQP Software

OGSA-DQP is an extension of OGSA-DAI that provides a service-based distributed query processor. It supports the evaluation of queries over collections of potentially remote relational data services. OGSA-DQP has been developed by teams at Newcastle and Manchester Universities.