Groeper, R.R.GroeperGrimm, C.C.GrimmMakedanz, S.S.MakedanzPfeiffenberger, H.H.PfeiffenbergerZiegler, W.W.ZieglerGietz, P.P.GietzSchiffers, M.M.Schiffers2022-03-042022-03-042009https://publica.fraunhofer.de/handle/publica/21807210.1016/j.future.2008.05.008In Germany's D-Grid project numerous Grid communities are working together to provide a common overarching Grid infrastructure. The major aims of D-Grid are the integration of existing Grid deployments and their interoperability. The challenge lies in the heterogeneity of the current implementations: three Grid middleware stacks and different Virtual Organization management approaches have to be embraced to achieve the intended goals. In this article we focus oil the implementation of an attribute-based authorization infrastructure that not only leverages the well-known VO attributes but also campus attributes managed by a Shibboleth federation.en003005006300journal article