Whether you’re a manager, product manager, designer or engineer, at some point during the product lifecycle you will have to deal with legacy. During this talk, I will explain how to tackle product legacy by understanding what it is, evaluating the gravity of it, defining and applying the right techniques and most importantly what you should learn from it. All of this without having to start coding from scratch and without impacting your existing users.

1. Transforming legacy
into success

3. What is legacy?

5. Everything is legacy
Every line of code written today
will be legacy tomorrow.

6. How is legacy created?

11. click here CLICK HERE
click here click here

13. bad technical design
bad product design
bad practices

14. How to deal with legacy?

15. Let’s start over from scratch!
Scope
Business criticality
Entanglement

16. Scope

18. Business criticality

19. Entanglement

20. Avoiding a product standstill.

21. Small changes with a big impact

22. Add new features

23. Improve current features

24. Which techniques can I use to
deal with it?

25. Process

26. Team communication
Documentation
Quality assurance
Automation
Talk to peers

27. Architecture

28. Design

30. click here CLICK HERE
click here click here

31. 1. Update old design to design system
2. Redesign using design system
Implement a design system
straight in the new design
Technique 1
Revolution
Technique 2
Evolution

34. Development

35. Boyscouting

36. Encapsulation

37. Islands

38. Islands

39. Islands

40. Islands

41. Islands

42. Legacy is not always a
problem.

44. Make it a success
Don’t start from scratch unless it’s your last resort
Avoid a product standstill, keep a slow but steady heartbeat
Your legacy is full of knowledge and value, learn from it

45. Don’t change,
learn to adapt.

46. @ andreascreten
madewithlove.be
andreas@mwl.be