1. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Web Services Technologies Diane McDonald, Strathclyde University Institutional Web Managers Workshop - 2003 Parallel Session C5

2. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Proposed Structure 09:15–09:20Introduction to session 09:20–09:30Brief overview of Web Services Technologies 09:30-09:40Brainstorming session to identify potential usage scenarios in HE/FE. 09:40-10:10 Group discussion to investigate how the opportunities identified could be realised. 10:10-10:15Report back 10:15-10:30Discussion to devise a way forward.

3. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Background e-commerce Enterprise Application Integration Object Orientated too complicated New methodologies and tools required. Key requirements – Reuse of applications and resources – Cost-effective to implement

4. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate What are Web Services ? ‘framework of self contained modular applications that can be made available, discovered and executed over the network by remote programs’ publish, discover, interact

5. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Publish, Discover, Interact

6. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate WST Core Standards SOAP WSDL UDDI

7. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate WST Core Standards SOAP : (Simple Object Access Protocol) –Lightweight XML-based protocol for transfer of structured data and type info –Features ›Message / EnvelopeMessageEnvelope ›Stateless, Utilises underlying network protocols ›RPC, Message Exchange Patterns (MEP) –SOAP 1.1 (1.2 W3C working draft)

8. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate SOAP Messaging Nodes

9. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate SOAP Envelope

10. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate WST Core Standards –‘describes how to interpret the messages, how to contact the WS and what protocols to use’ –uses standard XML schema –does not deal with business logic –WSDL 1.2 W3C working draft SOAP WSDL : Web Service Definition Language

11. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate WST Core Standards –Information repository and query servicesInformation repository and query services –UBR – Universal Business Registry –UDDI 3.0 OASIS/UDDI.org SOAP WSDL UDDI: Universal Data Description and Integration

12. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Simplified network of UDDI registries (Adapted from ‘The Evolution of UDDI’, UDDI.org)

13. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate WST Players Developers –HP –Microsoft, IBM, Sun, BEA Systems, Many other application developers Standards Organisations –OASIS –W3C (World Wide Web Consortium) – WS-I (Web Services Interoperability Organisation)

14. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate WST Protocol Stack

15. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate The Issues Standards Business Logic Security and Trust Models Uptake of Web Services Business Models

16. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Potential Usage Scenarios - General Business –Enterprise application integration –E-commerce Application Integration Portals and Portlets

17. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Discussion 1 - All Aim: Identify potential scenarios for use of WST within the HE/FE community MLEs? Portals and Portlets? Information Environments? Tools? MLEs? Portals and Portlets? Information Environments? Tools? Community-wide infrastructure?

18. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Discussion 2 - Groups Discuss: What are the: advantages? risks? barriers to implementation? –technical, cultural, business, other? 2 Groups : 1 technical, 1 strategic Agree on raconteur 2 Groups : 1 technical, 1 strategic Agree on raconteur Aim: Analyse the factors that will effect use of Web Services within HE/FE.

19. 09/06/2003D.McDonald@strath.ac.ukInformation Strategy Directorate Discussion 3 - All Summary: –What? –By whom? –Timescales? Technical workshops, exemplars, CoP Example Business Cases, implementation studies, CBA Technical workshops, exemplars, CoP Example Business Cases, implementation studies, CBA JISC, UCISA, W3C etc? Technical Strategic Aim: Identify the advice and guidelines required by the community.