Et si la solution c'était le problème - Agile France 2016

Transcript

1. AGILE FRANCE ET SI LA SOLUTION C’ÉTAIT LE PROBLÈME ?

   @lilobase

2. IF THE PROBLEM WAS THE SOLUTION ? @lilobase

3. PROBLEM ?

4. does the problem even exists ?

5. Creating a problem Leads to Fought by of your own

   feature creep YAGNI

6. « Often the right solution is to not write code

   at all solution at all

7. solving the root cause, not the symptoms…

8. Solving symptoms is a Leads to Fought by temporary solution

   instability root cause analysis

9. « You need to be a problem founder before being

   a problem solver finder solver

10. Wrong problem definition…

11. Wrong problem statement makes Leads to Fought by errors bugs

    tests

12. « TDD is a form of Property based testing is

    deductive reasoning inductive reasoning

13. Searching the solution in the technical field…

14. Searching solutions in the Leads to software with Fought by

    technical field no added value DDD

15. « You are not paid for the technical problem you

    solve, but for the business one business technical

16. Reinventing the [square] wheel…

17. Making your own Leads to Fought by wheel bad implementation

    benchmarking

18. « So, no, you shouldn't reinvent the wheel. Unless you

    plan on learning more about wheels, that is. learning wheel - Jeff Atwood

19. changing the problem perspective…

20. Wrong perspectives make Leads to Fought by complications accidental complexity

    simplicity Ockham razor principle

21. « Our job, as a software developer is to contains

    accidental complexity contain complexity

22. Scaling is not linear in complexity…

23. Scaling with the Leads to Fought by same solution software

    collapse decoupling software engineering

24. Micro-services

25. « Exploration is searching for new solutions while exploitation is

    improving what already works. - Alan Key Exploration exploitation

26. Scaling implies entropie

27. Scaling without managing Leads to Fought by entropy software rot

    refactoring

28. « I’m not a great programmer; I’m just a good

    programmer with great habits - Kent Beck habits great

29. « If I were given one hour to save the

    planet, I would spend 59 minutes defining the problem and on minute resolving it. -Albert Einstein 59 1

30. WHEN SOLVING A NEW PROBLEM 1. Do I solve an

    existing problem ? 2. Am I sure I don’t fix a symptom ? 3. Do I have the right problem definition ? 4. Am I searching the solution in the business domaine (and not in the technical field) ? 5. Do I have the right perspective (is the complexity of my problem aligned with the business complexity) ? 6. When scaling an existing solution : restart from 1

31. « Life is really simple, but we insist on making

    it complicated. -Confucius

32. MERCI ! @lilobase