1. Web Services Technology Topics The boring stuff

2. WSRF Web Services Resource Framework –managing stateful resources using web services standards Driven from work within the Global Grid Forums Open Grid Services Infrastructure (OGSI) Working Group Convergence of Grid and Web Services? WS-RF Globus Web Services

3. WSRF specifications http://www.globus.org/wsrf/specs/ws-wsrf.pdf

4. REST Representational State Transfer Used as an alternative to SOAP Key principles –Not a standard, but an approach Uses –HTTP –URLs –XML/HTML/GIF/JPEG (other resource representations) –Mime types http://www.xfront.com/REST-Web-Services.html

5. UDDI v3 Multi-registry environment –Supporting Federated Registries UDDI Registry –Nodes collectively manage UDDI data –Policy decisions for each decision point May be federated –Share common namespace –Compatible policies for key assignment –Policies permit publishers to assign keys UDDI Nodes –Access to a copy of Registry information –Typically through replication

6. Other UDDI v3 features Publisher specified keys –Currently UUIDs –Namespace management Security –Digital signing to core data types http://uddi.org/pubs/uddi_v3.htm