Why do I need the Guvnor BRMS and the Drools rule engine?

1. Geoffrey De Smet Why do I need the Guvnor BRMS?

3. My business requires domain expertise

4. My business rules change often

5. Auditable and reproducible

6. Future improvements

7. Use cases I have hammer, so every problem is a nail?

10. Not imperative like Java, Scala, Groovy, ...

12. Change often/fast

15. Mortgages example

17. Which field has the result our application need? Version 1 Version 2

19. when income below 1000 and age above 50

20. when income below 1% of mortgage amount

22. or Design the model in Guvnor:

24. My business requires domain expertise Only mortgage managers understand mortgage rules

26. participated in mortgages conferences/courses? No

30. Domain experts can read/write DRL with Guided Rule Editor Change

31. Guided Rule Editor demo video Demo video

33. Domain experts make the building Source: wikipedia

34. My business rules change often This mortgage rule change must be released by noon

35. Deliver changes fast

38. Self-service by mortgage manager

42. Deployment infrastructure

43. Auditable and reproducible Why was that mortgage approved last year?

45. Future improvements Feed-back welcome

47. Dependency graph (like Maven/OSGi but simplified) Mortgage rules Car loan rules General loan rules Customer rules 2.0 1.1 1.1 2.1

49. Test

51. Immutable (all dependent modules are released)

52. Summary

55. Change often/fast

57. Useful links

58. Website

59. http://www.jboss.org/drools/

60. Reference manual

61. http://www.jboss.org/drools/documentation.html

62. Blog

63. http://blog.athico.com/

64. Mailing lists (forum interface through nabble.com)