co-ordination model tuplespaces Linda middleware In a real world scenario Semantic Web applications must be capable to cope with the large scale, distributed, heterogeneous, unreliable and insecure environment of the World Wide Web if they are to truly represent added value to Web users. This includes issues of persistent storage, efficient reasoning, data mediation, scalability, distribution of data, fault tolerance and security. In this paper we present a coordination middleware for the Semantic Web and demonstrate its relevance to these vital issues for Semantic Web applications by elaborating a typical use case from the traffic management domain. Enabling Real World Semantic Web Applications Through a Co-ordination Middleware /semanticportal/servlet/download?ontology=Documentation+Ontology&concept=Article+in+Conference&instanceSet=kweb&instance=Enabling+Real+World+Semantic+Web+Applications+Through+a+Co-ordination+Middleware&attribute=On-line+PDF+Version&value=eswc2005.pdf 15 Heraklion, Crete, Greece European Semantic Web Conference (ESWC) 2005