UDDI and Its Evolution

1
UDDI and Its Evolution
2
Presentation Outline

• Brief description of UDDI
• Main structures of UDDI
• Evolution of UDDI
• Conclusion

3
Presentation Outline

• Brief description of UDDI
• Main structures of UDDI
• Evolution of UDDI
• Conclusion

4
Brief description of UDDI

• UDDI is a set of specifications that is used to
  publish information for describing and
  discovering web services, finding businesses,
  building registries.
• UDDI use public or private registries of Web
  Services to store the information about
  businesses and the services they offered.

5
Brief description of UDDI (Cont)

• How UDDI works? (WebService Example)
• Publish service
• Request service description (cengelkoy)
• Deliver service description (cengelkoy)
• Call service (over SOAP) (yalova)
• Deliver results (cengelkoy)

6
Brief description of UDDI (Cont)

• UDDI has three levels for information
• (Analogy with Telephone Directory)
• White Pages used to query companies with their
  attributes
• Yellow Pages used to query and categorize
  businesses by taxonomies
• Green Pages define how to interact with the
  Web Services (Tech. Info)

7
Presentation Outline

• Brief description of UDDI
• Main structures of UDDI
• Evolution of UDDI
• Conclusion

8
Main structures of UDDI

• Business Entity used to descript information
  about business and entity, also include the
  description of service and some technical
  information. And businessEntity structure
  supports the white and yellow pages taxonomies
• Business Service contains one or more Web
  Services descriptions describe how to find and
  bind to the web services, supporting green pages
• Binding Templates information to bind to and
  invoke web service (accessPoint,hostingRedirector)
  
• tModel define a service type (abstract
  service). A tModel has attributes as name,
  overviewDoc, categoryBag, etc. Businesses can
  offer the same type of service, all supporting
  the same service interface.
• publisherAssertion describe the relationship
  between businessEntitys and use
  xx_publisherAssertion message to publishing
  assertions of business relationships

9
Main structures of UDDI(Cont)
10
Presentation Outline

• Brief description of UDDI
• Main structures of UDDI
• Evolution of UDDI
• Conclusion

11
Evolution of UDDI
Overview
12
Evolution of UDDI (Cont)

• What is new in Version 3? (Topics)
• Registration key generation and management
  (integrity)
• Registration subscription API set
• XML digital signatures (security)
• All to enhance Registry Interaction

13
Evolution of UDDI (Cont)

• Registration key generation and management
  (integrity)
• The UDDI specification defines syntax for
• the development of UDDI keys that will
• preserve the integrity of each registry.
• Essentially, the intent is to provide a
• structure for creating unique keys for
• publication in multiple UDDI registries.

14
Evolution of UDDI (Cont)

• Registration subscription API set
• Publishing Services
• Subscribing to Services

15
Evolution of UDDI (Cont)

• XML digital signatures (security)
• Data has not been altered since it was signed
  and published
• Ownership of a particular registry entity can
  be validated
• Confidence that data transferred among
  registries can be assured

16
Presentation Outline

• Brief description of UDDI
• Main structures of UDDI
• Evolution of UDDI
• Conclusion

17
Conclusion

• UDDI has evolved to reflect todays pragmatic
  business requirements.
• V3 emphasizes the interaction of private and
  public registries.
• This brings the vision of wide deployment of web
  services closer to fruition(P2P).