The most important recent development in Grid systems is the adoption of the web services model as a basic architecture for Grid services. This paper describes a component framework for building distributed Grid applications that is consistent with that model. The framework, called XCAT, is based on the U.S. Department of Energy Common Component Architecture but with an implementation based on ...

Geospatial Web Services (GWS) provide access to geospatial data and expose basic processing functionality using Web Service technology. The complexity of geo-processing tasks necessitates the combination of basic Web Services to user-oriented and application-specific service compositions. Semantic heterogeneity and lack of automation have been identified as core problems that hinder the full ex...

The most important recent development in Grid systems is the adoption of the Web services model as a basic architecture for Grid services. The result is called the Open Grid Services Architecture. This paper describes a component framework for building distributed Grid applications that is consistent with that model. The framework, called XCAT, is based on the U.S. Department of Energy Common C...

Geospatial Web Services (GWS) provide access to geospatial data and expose basic processing functionality using Web Service technology. The complexity of geo-processing tasks necessitates the discovery of basic Web Services and their combination to user-oriented and application-specific service compositions. Semantic heterogeneity has been identified as a core problem that hinders the full expl...

This paper presents the architectural considerations of the Advancing Clinico-Genomic Trials on Cancer (ACGT) project aiming at delivering a European Biomedical Grid in support of efficient knowledge discovery in the context of post-genomic clinical trials on cancer. Our main research challenge in ACGT is the requirement to develop an infrastructure able to produce, use, and deploy knowledge as...

In this paper we explore the use of action systems for distributed service composition Distributed systems can be composed out of a basic compu tation and a set of services Even though this way of designing a system out of components helps in managing the derivation task formal descrip tion techniques are needed due to the complexity of distributed systems We propose a method where services or ...