— Current presence systems offer only basic services that are mostly useful for dial-up environments, while event services have not seen widespread deployment. We describe the SI...
We describe work leading toward specification of a technical architecture for the National Science, Mathematics, Engineering, and Technology Education Digital Library (NSDL). This...
Many real-life organizations are hierarchies of largely autonomous, heterogeneous members (individuals or other organizations), often exhibiting rich policies. We restrict our att...
The concept of Service Oriented Architecture (SOA) has had a significant impact not only on software engineering but on the analysis of an organization's business layer as we...
— Web Services are commonly used by organizations for B2B integration and enterprise application integration. UDDI registries are widely used as mechanisms for businesses to list...