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The Great Plains Network (GPN) Middleware Test Bed

GPN (Great Plains Network) is a consortium of public universities in 
 seven mid-western states. GPN goals include regional strategic 
 planning and the development of a collaboration environment, 
 middleware services and a regional grid for sharing computational, 
 storage and data resources. A major challenge is to arrive at a 
 common authentication and authorization service, based on the set of 
 heterogeneous identity providers at each institution. GPN has built a prototype middleware test bed that includes Shibboleth 
 and other NMI-EDIT middleware components. The test bed includes 
 several prototype end-user applications, and is being used to further 
 our research into fine-grained access control for virtual 
 organizations. The GPN prototype applications and namespace form a 
 basis for the design and deployment of a robust and scalable attribute 
 management architecture.