Managing healthcare information: the role of the broker.
DAVID E. BUDGEN, Mark Turner, Ioannis Kotsiopoulos, Fujun Zhu, Michelle L Russell, Michael Rigby, Keith H. Bennett, Pearl Brereton, John A Keane, Paul J. Layzell · PubMed · 2005
We describe a prototype information broker that has been developed to address typical healthcare information needs, using web services to obtain data from autonomous, heterogeneous sources. Some key features are reviewed: how data sources are turned into data services; how we enforce a distributed access control policy; and how semantic interoperability is achieved between the broker and its data services. Finally, we discuss the role that such a broker might have in a Grid context, as well as the limitations this reveals in current Grid provision.