Managing variability in software applications - scandev12

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This document discusses managing variability in software applications. It introduces generative programming as an approach to deal with software system families and reusable components. Generative programming uses a generator to automate the assembly of application implementations from configurable components based on domain-specific product configurations. This increases productivity and quality by reducing complexity and errors compared to point solutions for each customer. The key steps are domain analysis, domain design, domain implementation, and technology projection to implement the generator.

Managing variability in software applications

About me

 Stephan Hochdörfer, bitExpert AG
 Department Manager Research Labs
 S.Hochdoerfer@bitExpert.de
 @shochdoerfer

Managing variability in software applications

One customer, optimized solution

Managing variability in software applications

Developer vs. Businessman

Managing variability in software applications

Different requirements

Managing variability in software applications

Different requirements: intensive workload

Managing variability in software applications

Different requirements: Performance

Managing variability in software applications

Where will this lead to?

Managing variability in software applications

Maintanance nightmare!

Managing variability in software applications

Standardize you should!

Managing variability in software applications

Application framework?

Managing variability in software applications

Plugin based approach?

Managing variability in software applications

Configuration chaos?

Managing variability in software applications

No automation?

Managing variability in software applications

Generalize you should!

Managing variability in software applications

Generative Programming

Dealing with software system
families, reusable
implementation components
and configuration knowledge.

Managing variability in software applications

Generative Programming: The workflow

Generator
Generator

Managing variability in software applications

Generative Programming: The workflow

Configuration
Configuration
(DSL)
(DSL)

Generator
Generator

Managing variability in software applications

Generative Programming: The workflow

Configuration
Configuration
(DSL)
(DSL)

Implementation-
Implementation-
components
Generator
Generator
components

Managing variability in software applications

Generative Programming: The workflow

Configuration
Configuration
(DSL)
(DSL)

1..n
Implementation-
Implementation-
components
Generator
Generator Product
components Product

Managing variability in software applications

Generative Programming: The workflow

Configuration
Configuration
(DSL)
(DSL)
Customer 22
Customer

Implementation-
Implementation-
components
Generator
Generator Customer 11
components Customer

Managing variability in software applications

Focus on the (software system) family!

Managing variability in software applications

Software System Family

Set of applications with similar
properties as well as special
properties for each individual
member.

Managing variability in software applications

Phase 1: Domain analysis

Managing variability in software applications

Listen to the customers

Managing variability in software applications

Talk to domain experts

Managing variability in software applications

Do the requirements make sense?

Managing variability in software applications

Does it belong to the family?

Managing variability in software applications

Does it belong to the family? Maybe...

Managing variability in software applications

Does it belong to the family? No!

Managing variability in software applications

Phase 2: Domain design

Managing variability in software applications

Feature Modelling

Managing variability in software applications

Phase 3: Domain implementation

Managing variability in software applications

Implementation components

Managing variability in software applications

Configuration Knowledge

Managing variability in software applications

Generative Programming
Generator
Domain Engineering

Domain-
analysis

Domain-
design

Domain-
implementation

Managing variability in software applications

Generative Programming
Generator Product
Domain Engineering App. Engineering
New
requirements

Domain- Requirements
analysis analysis

Domain- Product
design configuration

Components,
Domain- DSL, Testing and
implementation Generators,
Infrastructure
integration

Managing variability in software applications

Technology projection

Managing variability in software applications

Implement the generator...

Managing variability in software applications

Software generator framework

Managing variability in software applications

Generative Programming: The goal

Increasing the productivity,
quality, and time-to-market.

Managing variability in software applications

Generative Programming: The goal

Create an optimized application
on demand!

Managing variability in software applications

Generative Programming: The goal

Automate the assembling of the
components!

Managing variability in software applications

Generative Programming: Bonus points

Managing variability in software applications

Generative Programming: Bonus points

Less error-prone, due to the
automation.

Managing variability in software applications

Generative Programming: Bonus points

Reduce application complexity.

Managing variability in software applications

Generative Programming: Bonus points

Just one code repository:
The software generator

Managing variability in software applications

Generative Programming: Bonus points

Reduce maintenance support.

Managing variability in software applications

Generative Programming: Bonus points

Implementation
Feature
component

Managing variability in software applications

Generative Programming: Bonus points

Feature Customer

Managing variability in software applications

Generative Programming: Bonus points

Customer

Feature

Implementation
component

Managing variability in software applications

Generative Programming: The book

Managing variability in software applications

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Managing variability in software applications - scandev12

1. Managing variability in software applications

2. Managing variability in software applications About me  Stephan Hochdörfer, bitExpert AG  Department Manager Research Labs  S.Hochdoerfer@bitExpert.de  @shochdoerfer

3. Managing variability in software applications One customer, optimized solution

4. Managing variability in software applications Developer vs. Businessman

5. Managing variability in software applications Different requirements

6. Managing variability in software applications Different requirements: intensive workload

7. Managing variability in software applications Different requirements: Performance

8. Managing variability in software applications Where will this lead to?

9. Managing variability in software applications Maintanance nightmare!

10. Managing variability in software applications Standardize you should!

11. Managing variability in software applications Application framework?

12. Managing variability in software applications Plugin based approach?

13. Managing variability in software applications Configuration chaos?

14. Managing variability in software applications No automation?

15. Managing variability in software applications Generalize you should!

16. Managing variability in software applications Generative Programming Dealing with software system families, reusable implementation components and configuration knowledge.

17. Managing variability in software applications Generative Programming: The workflow Generator Generator

18. Managing variability in software applications Generative Programming: The workflow Configuration Configuration (DSL) (DSL) Generator Generator

19. Managing variability in software applications Generative Programming: The workflow Configuration Configuration (DSL) (DSL) Implementation- Implementation- components Generator Generator components

20. Managing variability in software applications Generative Programming: The workflow Configuration Configuration (DSL) (DSL) 1..n Implementation- Implementation- components Generator Generator Product components Product

21. Managing variability in software applications Generative Programming: The workflow Configuration Configuration (DSL) (DSL) Implementation- Implementation- components Generator Generator Customer 11 components Customer

22. Managing variability in software applications Generative Programming: The workflow Configuration Configuration (DSL) (DSL) Customer 22 Customer Implementation- Implementation- components Generator Generator Customer 11 components Customer

23. Managing variability in software applications Focus on the (software system) family!

24. Managing variability in software applications Software System Family Set of applications with similar properties as well as special properties for each individual member.

25. Managing variability in software applications Phase 1: Domain analysis

26. Managing variability in software applications Listen to the customers

27. Managing variability in software applications Talk to domain experts

28. Managing variability in software applications Do the requirements make sense?

29. Managing variability in software applications Does it belong to the family?

30. Managing variability in software applications Does it belong to the family?

31. Managing variability in software applications Does it belong to the family?

32. Managing variability in software applications Does it belong to the family? Maybe...

33. Managing variability in software applications Does it belong to the family? No!

34. Managing variability in software applications Does it belong to the family? No!

35. Managing variability in software applications Phase 2: Domain design

36. Managing variability in software applications Feature Modelling

37. Managing variability in software applications Phase 3: Domain implementation

38. Managing variability in software applications Implementation components

39. Managing variability in software applications Configuration Knowledge

40. Managing variability in software applications Generative Programming Generator Domain Engineering Domain- analysis Domain- design Domain- implementation

41. Managing variability in software applications Generative Programming Generator Product Domain Engineering App. Engineering New requirements Domain- Requirements analysis analysis Domain- Product design configuration Components, Domain- DSL, Testing and implementation Generators, Infrastructure integration

42. Managing variability in software applications Technology projection

43. Managing variability in software applications Implement the generator...

44. Managing variability in software applications Standardize you should!

45. Managing variability in software applications Software generator framework

46. Managing variability in software applications Generative Programming: The goal Increasing the productivity, quality, and time-to-market.

47. Managing variability in software applications Generative Programming: The goal Create an optimized application on demand!

48. Managing variability in software applications Generative Programming: The goal Automate the assembling of the components!

49. Managing variability in software applications Generative Programming: Bonus points

50. Managing variability in software applications Generative Programming: Bonus points Less error-prone, due to the automation.

51. Managing variability in software applications Generative Programming: Bonus points Reduce application complexity.

52. Managing variability in software applications Generative Programming: Bonus points Just one code repository: The software generator

53. Managing variability in software applications Generative Programming: Bonus points Reduce maintenance support.

54. Managing variability in software applications Generative Programming: Bonus points Implementation Feature component

55. Managing variability in software applications Generative Programming: Bonus points Feature Customer

56. Managing variability in software applications Generative Programming: Bonus points Customer Feature Implementation component

57. Managing variability in software applications Generative Programming: The book

58. Managing variability in software applications Curious for more? http://replicatorframework.org

59. Thank you!

60. Flickr Credits http://www.flickr.com/photos/andresrueda/3452940751/ http://www.flickr.com/photos/andresrueda/3455410635/

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