An important objective of the Semantic Web is to make Electronic Commerce interactions more flexible and automated. To achieve this, standardization of ontologies, message content...
XACML does not natively support RBAC and even the specialized XACML profiles are not able to support many relevant constraints such as static and dynamic separation of duty. Exte...
tween documents. They should allow for an abstract representation of data which resembles the way they are actually perceived and used in the real world, thus shortening (with resp...
As the number of available Web services increases there is a growing demand to realise complex business processes by combining and reusing available Web services. In this context,...
Large, industry-wide interoperability projects use syntax-based standards approaches to accomplish interoperable data exchange among enterprise applications. We are investigating S...