1. SBVR in Practice: Systems Built for Change Declarative Technologies in a Digital Ecosystem Alexandros Marinos (a.marinos@surrey.ac.uk)

3. Case Study Pt 1: SBVR + Relational Databases + REST Made for one another

4. SBVR

7. Terms student course study programme

8. Terms student course study programme

9. Terms student course study programme Fact Types student is registered for course student is enrolled in study programme course is available for study programme

10. Terms student course study programme Fact Types student is registered for course student is enrolled in study programme course is available for study programme

11. Terms student course study programme Fact Types student is registered for course student is enrolled in study programme course is available for study programme

12. Rules It is necessary that each student is registered for a t most five courses Terms student course study programme Fact Types student is registered for course student is enrolled in study programme course is available for study programme

13. Rules It is necessary that each student is registered for a t most five courses It is necessary that each course t hat a student is registered for, is available for a study programme that the student is enrolled in. Terms student course study programme Fact Types student is registered for course student is enrolled in study programme course is available for study programme

14. Relational Database

17. Vocabulary student , course , study programme , name student is registered for course student is enrolled in study programme course is available for study programme

18. Vocabulary student , course , study programme , name student is registered for course student is enrolled in study programme course is available for study programme

19. Vocabulary student , course , study programme , name student is registered for course student is enrolled in study programme course is available for study programme student has name , course has name , study programme has name

20. Vocabulary student , course , study programme , name student is registered for course student is enrolled in study programme course is available for study programme student has name , course has name , study programme has name

21. Rules It is necessary that each student is registered for a t most five courses It is necessary that each course t hat a student is registered for, is available for a study programme that the student is enrolled in. Vocabulary student , course , study programme , name student is registered for course student is enrolled in study programme course is available for study programme student has name , course has name , study programme has name

22. REST

27. Vocabulary student , course , study programme , name student is registered for course student is enrolled in study programme course is available for study programme student has name , course has name , study programme has name

28. Vocabulary student , course , study programme , name student is registered for course student is enrolled in study programme course is available for study programme student has name , course has name , study programme has name URIs collection of students: http://domain.org/students/ A specific student: http://domain.org/students/John / list of courses a student is enrolled in: http://domain.org/students/John/courses/ [note: domain could be replaced with an IP address]

29. The Big Picture

31. Case Study Pt 2: Deriving Processes from Rules

32. What Processes? Student Study Programme Course Collection Instance Collection Instance Collection Instance GET + + + + + + PUT + + + POST + + + DELETE + + +

33. If we were to write processes…

34. Cost of Change Rules It is necessary that each student is registered for a t most five courses It is necessary that each course t hat a student is registered for, is available for a study programme that the student is enrolled in. Fact Types student is registered for course student is enrolled in study programme course is available for study programme Terms student course study programme

35. Cost of Change Rules It is necessary that each student is registered for a t most five courses It is necessary that each course t hat a student is registered for, is available for a study programme that the student is enrolled in. It is necessary that each student that is under probation, is registered for a t most five courses Fact Types student is registered for course student is enrolled in study programme course is available for study programme student is under probation Terms student course study programme

36. The alternative

37. The alternative

38. Meta-process?

39. One Rule, Many Processes

44. Questions?

47. Extending the model: Inputs

48. Integration with DE infrastructure

49. Integration with DE infrastructure

50. More Questions?