The growing importance of access control has led to the definition of numerous languages for specifying policies. Since these languages are based on different foundations, langua...
Recently, describing behavior of web services is becoming more and more important. This behavior can be described by business protocols representing the possible sequences of messa...
Web services represent a challenge and an opportunity for organizations wishing to expose product and services offerings through the Internet. The Web service technology provides ...
XACML has emerged as a popular access control language on the Web, but because of its rich expressiveness, it has proved difficult to analyze in an automated fashion. In this pape...
As enterprises seek to engage in increasingly rich and agile forms of collaboration, they are turning towards service-oriented architectures that enable them to selectively expose...