Control on RDF Triple Stores from a Semantik Wiki Perspective

RDF triple stores are used to store and query large RDF models. Semantic Web applications built on top of such triple stores require methods allowing high-performance access control not restricted to per model directives. For the growing number of lightweight, scripted Semantic Web applications it is crucial to rely on access control methods which maintain a balance between expressiveness, simplicity and scalability. Starting from a Semantic Wiki application scenario we collect requirements for useful access control methods provided by the triple store. We derive a basic model for triple store access according to these requirements and review existing approaches in the field of policy management with regard to the requirements. Finally, a lightweight access control framework based on rule-controlled query filters is described.