Caching OGSI grid service data to allow disconnected state retrieval

Abstract

The Open Grid Services Infrastructure (OGSI) defines a standard set of facilities which allow the creation of wide area distributed computing applications, i.e. applications which cross organisational and administrative boundaries. An earlier project demonstrated significant potential for OGSI to support mobile or remote sensors, which require the integration of devices which are wirelessly and therefore only intermittently connected to the fixed network. Further, there is significant potential for mobile clients, e.g. PDAs, to be used for data analysis. However, OGSI currently assumes the availability of a permanent network connection between client and service. This paper proposes the use of caching to provide improved access to the state of intermittently connected OGSI grid services. The paper also describes a prototype which has been implemented and tested to prove the viability of the approach. © Springer-Verlag Berlin Heidelberg 2005.