The document discusses three case studies of SOA implementations: 1. Integrating legacy systems at Concur for improved reporting using an iterative development approach with WSO2 tools. 2. Building a national SOA in Denmark (OIO SOI) for simplified e-business using a registry, transport protocols, and standard XML. 3. Integrating multiple IT management systems using an event-driven architecture with adapters, a message broker, and master data services.

4. Case study 1

5. Integration at the glass

7. Architecture WSAS Data Services Spring Services Existing Databases Existing Applications SOAP Services ESB routing, synchronization and transformation Registry File Access Mashups SOAP Bug Tracking / ITIL Ticket / CRM / SFA / HR / (10 systems in all and growing) Restful

9. Iterative development

13. Business to Government

14. Case Study 2 OIO SOI

18. RASP

22. NITA Interop

24. Results 18,500 companies sending invoices via RASP Mandatory to send invoices to all government agencies Scanning companies and a web gateway allow bridging

27. Case Study #3 Enterprise IT Management

30. Event based models

33. Feedback!

34. Feedback problems Black Box change update

35. Feedback loops Black Box system Black Box system Adapter Adapter Event Broker http://pzf.fremantle.org/2008/09/interesting-problem-in-event-driven.html

36. Adding Master Data into an Event Based Architecture

41. Conclusions

42. Thin slice prototyping is always a good idea

43. Iterative project plans are essential

44. Prove the concept to the business

46. Questions?