title: Managing healthcare information: the role of the broker.
abstract: 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.
authors.affiliation: School of Computing & Mathematics, Keele University, Staffordshire ST5 5BG. d.budgen@cs.keele.ac.uk
authors.forename: David
authors.initials: D
authors.lastname: Budgen
authors.forename: Mark
authors.initials: M
authors.lastname: Turner
authors.forename: Ioannis
authors.initials: I
authors.lastname: Kotsiopoulos
authors.forename: Fujun
authors.initials: F
authors.lastname: Zhu
authors.forename: Michelle
authors.initials: M
authors.lastname: Russell
authors.forename: Michael
authors.initials: M
authors.lastname: Rigby
authors.forename: Keith
authors.initials: K
authors.lastname: Bennett
authors.forename: Pearl
authors.initials: P
authors.lastname: Brereton
authors.forename: John
authors.initials: J
authors.lastname: Keane
authors.forename: Paul
authors.initials: P
authors.lastname: Layzell
mesh_terms: D003199:Computer Systems; D006801:Humans; D019451:Information Management / Q000295:instrumentation / Q000379:methods*; D007255:Information Services; D016247:Information Storage and Retrieval; D007256:Information Systems / Q000458:organization & administration*; D006113:United Kingdom; D014584:User-Computer Interface; D018875:Vocabulary, Controlled