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The Advanced Resource Connector (ARC) is a lightweight , non-intrusive, simple yet powerful Grid middleware capable of connecting highly heterogeneous computing and storage resources. ARC aims at providing general purpose, flexible, collaborative computing environments suitable for a range of uses, both in science and business. The server side offers the(More)
This thesis covers three areas in the field of enabling distributed computing infrastructure for scientific applications. In the first paper we present tools for general purpose solutions using portal technology while the second paper addresses the access of grid resources within an application problem solving environment for a specific domain. The next two(More)
List of papers This thesis is based on the following papers, which are referred to in the text by their Roman numerals. Project-1: In papers I and II, work on application execution environments is described. In paper I, we present tools for general purpose solutions using portal technology while paper II addresses access of grid resources within an(More)
In this paper we present the Chelonia storage cloud middleware. It was designed to fill the requirements gap between those of large, sophisticated scientific collaborations which have adopted the grid paradigm for their distributed storage needs, and of corporate business communities which are gravitating towards the cloud paradigm. The similarities to and(More)
The Advanced Resource Connector (ARC) has proven to be a reliable and high performing grid middleware solution since the first release in 2002. Originated by the NorduGrid collaboration, it is now used and developed by a number of projects including KnowARC, a European Commission funded initiative. It is used in several scientific domains, from high-energy(More)
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