1. Application Integration in Intranets and Extranets Antti Kiviluoto 16.3.2004 Antti Kiviluoto 16.3.2004

2. Heterogeneous infrastructure Today, companies have distributed their business- critical applications to several different systems – everything cannot be done within one system (e.g.ERP) Critical business processes require communication between these systems and information sharing will increase in future These systems are not necessarily located inside the company, but business processes may require communication between companies

3. EAI and B2Bi EAI – Enterprise Application Integration B2Bi – Business-to-Business Integration Two different acronyms, same needs –To speed up and automate business processes –To reduce costs and improve service Differ from each other e.g. by –Security needs (encryption, authentication…) –Used protocols (in-house, EDI, RosettaNet, ebXML etc.)

4. EAI Layer Model

5. Two ways to integrate It is relatively easy to make two applications communicate with each other – just link them with appropriate interfaces and conversions What if there are more than two applications? Point-to-point integration Centralized integration

6. Making more than two systems communicate with each other using point-to-point links will result in ”spaghetti integration” Point-to-point integration Two ways to integrate Centralized integration Maintenance of integration is a nightmare – change in one system reflects all over the architecture What if these applications are located in different companies?

7. Using a centralized integration hub easies maintenance dramatically and reduces the total cost of ownership If one of the system changes, there is one link that requires re- configuration – easier change management Two ways to integrate Centralized integration Point-to-point integration

8. EAI and B2Bi

9. Integration Market and Products Product license revenue 1,37 billion USD (23% of the middleware segment) [Gartner] Consolidation going on among integration vendors IBM nro. 1 in the integration broker market, market share 19,1% Other strong vendors: Microsoft, BEA and WebMethods

10. Integration Challenges Technology Standardization Quick-Fix solutions Point-to-point model Business Internal personnel & organizational issues Product variety Mergers & Acquisitions

11. Integration Opportunities Technology Reusability Change Management Error handling monitoring Business Automation ROI & TCO Dynamic business relations

12. Future Convergence of EAI and B2Bi Leading software vendors include integration module within their product (ERP, CRM etc.) Service-Oriented Architecture (SOA) raises Standards come and go

13. THANK YOU! Questions?