Recent trends combine business process modeling (BPM) with model driven development (MDD) practices at the purpose of increasing the effectiveness of the development of software applications that must comply with business process requirements. In this chapter we report our experience of applying a MDD approach and tool to a set of representative industrial scenarios: one in the banking field, one focused on marketing content management, and one for managing company administration issues. To help close the gap between the modeling of business processes and the running software applications, we introduce automatic conversion of business process models (represented with BPMN) into application models (represented with WebML, Web Modeling Language), defined as abstract, platform-independent representations of the application structure and behavior. Application models are themselves amenable to the semi-automatic transformation into application code, resulting in extremely rapid prototyping and shorter time-to-market. We show how the proposed approach, based on a chain of transformations that ultimately produce the source code of the application, has proven effective in different industrial scenarios and we report some quantitative measures that demonstrate the increased development productivity.

1. Lessons learned from applying BPM and MDD practices to a large-scale banking scenario with BPMN, WebML, and WebRatio Marco Brambilla WebRatio - partner, Politecnico di Milano - A. Professor Stefano Butti WebRatio- co-founder and CEO

3. WebRatio BPM

4. Banking scenario requirements

5. Organization of the work

6. Size and effort

7. Lessons learned

8. Comparison to other projects

9. ConclusionsAgenda

11. Not only BP. Also UI, business logics, architectural issues

12. Reduce development effort, time to market

13. Increase prototype based interactions

14. Business Process based applications

15. Main requirements are driven by processes and flowing data

16. Web/SOA environment

17. Wrap and reuse legacy systems

18. Build new applications with SOA backend for (future) integration and reuse needsOur approach: BPM + MDD + SOA

19. Different models concur to define the application requirements: 1. Design the Model

20. The generation rules used by WebRatio for building the final Web application are fully customizable and extensible. More specifically, you can define: 2. Customize the Rules

21. Starting from the models and rules defined in the previous steps, WebRatio is able to automatically generate the final application. The result is: astandard and open Java Web application, with no proprietary runtime deployable on any Java Application Server 3. Generate the Application Process layer Presentation layer Visual identity Business layer Servicelayer Datalayer Integrationlayer Standard Java Web application IBMWebSphere Caucho Resin ApacheTomcat OracleApplicationServer JBoss Application Server

23. 2,900 employees, 17 European countries

24. products sold through 10,000 branches of the group

25. porting the entire software infrastructure from a legacy canned environment to an open and configurable platformcombining

26. BPM

27. Model-Driven development

28. SOA

29. On one pilot country first, and then throughout EuropeBanking scenario

31. 18% for BP analysis and modeling,

32. 12% for wrapping existing legacy procedures in SOA

33. 55% for the design and refinement of the application models

34. ...Application size and effort

36. Understanding

37. customers were able to discuss the process models but they weren't actually able to focus on the actual issues

38. Continuous feedback and prototyping

39. Several processes issues were identified only through feedbacks on the running application prototypes

40. Separation of concerns

41. BPM is not everything! BPM, Data model, Application model, EA (SOA)

42. Teamwork

43. Evolution support

44. Process versioningLessons learned

46. Fairly simple processes are often used. Trivial ones?!

47. The share of effort:

48. 12% process analysis

49. 53% application modeling

50. 20% graphical style

51. General purpose application to be sold as off-the-shelf vertical to SMEs

52. It condensates requirements from several concrete casesCMS (Content Management System) Project and order management

54. Software producer (WebRatio)

55. Research center (Politecnico di Milano)

56. Big industrial customers (Unicredit, Acer, ... and bigger ones I’ll tell you about in private)

57. Extremely high value of real, running prototypes for interaction with customers

58. Separation of concerns and identification of interface between different rolesConclusion

59. Some resources www.webratio.com www.webml.org + slideshare, twitter, linkedin, youtube FREE BPM editor and prototype generation We were at the BPM 2010 conference in Hoboken, NJ

60. Questions? Marco Brambilla marco.brambilla@polimi.it, @marcobrambi Stefano Butti stefano.butti@webratio.com, @stebutti Thank you for your attention