Web service and Semantic Web service

1. Semantic Web Services
Module 4

2. From Web Services to Semantic Web Services
Adding semantics to Web services will change the way you use these
services in your applications, and more specifically, the goal is to
automatically discover the requested service, invoke it, composite
different services to accomplish a given task, and automatically monitor
the execution of a given service

3. WEB SERVICE AND WEB SERVICE STANDARDS
Web services architecture
The service provider sends a WSDL
file to UDDI
The service requester contacts UDDI
to find out who is the provider for the
data it needs, and then it contacts the
service provider using the SOAP
protocol
The service provider validates the
service request and sends structured
data in an XML file, using the SOAP
protocol

4. TYPICAL ACTIVITY FLOW FOR WEB SERVICES

5. DESCRIBE YOUR WEB SERVICE : WSDL

6. DESCRIBE YOUR WEB SERVICE : WSDL

7. Example of a Web Service Generated by VS.NET

8. Example of a Web Service Generated by VS.NET

9. WSDL Document for the Web Service

10. WSDL Document for the Web Service

11. WSDL Document for the Web Service

12. WSDL Document for the Web Service

13. Elements in a WSDL Document

14. Elements in a WSDL Document

15. Elements in a WSDL Document

16. Elements in a WSDL Document

17. Elements in a WSDL Document

18. Elements in a WSDL Document
We have now finished examining the generated WSDL document, which carefully
provides all the information that might be needed by a client who wishes to invoke the
service.
Later, we will make changes to this document to convert the underlying Web service
into a Semantic Web service

19. EXCHANGE DATA FREELY : SOAP

20. EXCHANGE DATA FREELY : SOAP

21. EXCHANGE DATA FREELY : SOAP

22. UDDI: A REGISTRY OF WEB SERVICES

23. Basic UDDI data types

24. businessEntity