Presentasjon til temakveld for Visma Consulting. Om temaet: Specification by example er relevant for testere, arkitekter og utviklere. Det handler om å unngå funksjonelle gap og inkonsistens mellom spesifikasjoner og tester. Ved å utvide spesifikasjoner med eksempler lager man en ”single source of truth” for både utvikling og test, og ved å automatisere spesifikasjonene muliggjør man automatisert akseptansetestin

1. Agile approach to quality
Gojko Adzic
http://gojko.net
gojko@gojko.com
@gojkoadzic

2. Plan for today
● How teams often get stuck
● Three key techniques to improve
● How they help
● Adoption strategy
● Q&A

11. Real problems
● slow feedback
● huge amount of time wasted
● low visibility of stuff coming through
the pipeline
● lack of shared understanding
● different risk checks are tightly
coupled

12. Unpicking water-scrum-fall
● optimise the whole
pipeline
● remove information
bottlenecks
● shorten feedback loops

13. Our job is not to
develop, test,
manage,
analyse....

14. Our job is to get
the right software
shipped faster
tomorrow than
today!

15. Optimise the whole pipeline
● Push work away from bottlenecks
● Kill scope creep
● Kill the telephone game
● Focus on valuable work
● Get a shared understanding of risk
● Get a shared definition of quality
● Kill synchronisation work, several sources of truth
● Drop software that did not succeed

16. Remove information bottlenecks
● Teach / share domain
knowledge
● Build and publish relevant
documentation
● Visualise risk

17. Shorten feedback loops
● Decouple inspecting
different risk categories
● Automate so tests are fast
and maintainable
● Move from confidence to
evidence

18. Benefits?
● Shorter time to market –
often by 3 or 4 times
● Much higher levels of
quality

19. Three key techniques

20. Impact Mapping

21. Impact Mapping

23. Optimise the whole pipeline
● Push work away from bottlenecks
● Kill scope creep
● Kill the telephone game
● Focus on valuable work
● Get a shared understanding of risk
● Get a shared definition of quality
● Kill synchronisation work, several sources of truth
● Drop software that did not succeed

24. Shorten feedback loops
● Decouple inspecting different risk categories
● Automate so tests are fast and maintainable
● Move from confidence to evidence

26. Collaborate on specifications

27. Illustrate requirements using
examples

28. Refine into specifications

29. Automate without changing

30. = Executable specifications

31. From “Agile Testing” Crispin/Gregory

32. Ports & adapters
From “Growing Object Oriented Software” Pryce/Freeman

34. Optimise the whole pipeline
● Push work away from bottlenecks
● Kill scope creep
● Kill the telephone game
● Focus on valuable work
● Get a shared understanding of risk
● Get a shared definition of quality
● Kill synchronisation work, several sources of
truth
● Drop software that did not succeed

35. Remove information bottlenecks
● Teach / share domain knowledge
● Build and publish relevant documentation
● Visualise risk

36. Shorten feedback loops
● Decouple inspecting different risk
categories
● Automate so tests are fast and maintainable
● Move from confidence to evidence

37. ACC Matrix

38. ACC Matrix
http://bit.ly/accMatrix

39. Optimise the whole pipeline
● Push work away from bottlenecks
● Kill scope creep
● Kill the telephone game
● Focus on valuable work
● Get a shared understanding of risk
● Get a shared definition of quality
● Kill synchronisation work, several sources of truth
● Drop software that did not succeed

40. Remove information bottlenecks
● Teach / share domain knowledge
● Build and publish relevant documentation
● Visualise risk

41. Shorten feedback loops
● Decouple inspecting different risk categories
● Automate so tests are fast and maintainable
● Move from confidence to evidence

42. Shorten feedback loops
● Decouple inspecting different risk categories
● Automate so tests are fast and maintainable
● Move from confidence to evidence

43. Adoption
● Get the entire team together
● Visualise the pipeline
● Choose your #1 problem
● Decide on solution together
● Treat it as an experiment
● Rinse & Repeat!