This presentation is about how to face the usual problems caused by requirement changes when we are developing a feature, in such a way that the impact gets minimized and as little work and time as possible is wasted.

1. HOW TO IMPROVE EFFICIENCY
(Without dying while trying)

2. HOW TO IMPROVE EFFICIENCY
 The problem
 Where to start?
 Big tasks, big problems
 Changes in the requirements
 Wasted Work
 The guidelines
 Extra tips
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3. WHERE TO START?
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4. HOW TO IMPROVE EFFICIENCY
 The problem
 Where to start?
 Big tasks, big problems
 Changes in the requirements
 Wasted Work
 The guidelines
 Extra tips
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5. BIG TASKS, BIG PROBLEMS
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6. HOW TO IMPROVE EFFICIENCY
 The problem
 Where to start?
 Big tasks, big problems
 Changes in the requirements
 Wasted Work
 The guidelines
 Extra tips
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7. CHANGES IN THE REQUIREMENTS
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8. HOW TO IMPROVE EFFICIENCY
 The problem
 Where to start?
 Big tasks, big problems
 Changes in the requirements
 Wasted Work
 The guidelines
 Extra tips
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9. WASTED WORK
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10. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
1. Define the big picture
2. Create a skeleton
3. Define your views
4. Divide and conquer
5. Abstract your problems
6. Iterate over steps 4 and 5
7. Final polishing
 Extra tips
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11. DEFINE THE BIG PICTURE
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12. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
1. Define the big picture
2. Create a skeleton
3. Define your views
4. Divide and conquer
5. Abstract your problems
6. Iterate over steps 4 and 5
7. Final polishing
 Extra tips
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13. CREATE A SKELETON
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14. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
1. Define the big picture
2. Create a skeleton
3. Define your views
4. Divide and conquer
5. Abstract your problems
6. Iterate over steps 4 and 5
7. Final polishing
 Extra tips
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15. DEFINE YOUR VIEWS
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16. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
1. Define the big picture
2. Create a skeleton
3. Define your views
4. Divide and conquer
5. Abstract your problems
6. Iterate over steps 4 and 5
7. Final polishing
 Extra tips
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17. DIVIDE AND CONQUER
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18. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
1. Define the big picture
2. Create a skeleton
3. Define your views
4. Divide and conquer
5. Abstract your problems
6. Iterate over steps 4 and 5
7. Final polishing
 Extra tips
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19. ABSTRACT YOUR PROBLEMS
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20. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
1. Define the big picture
2. Create a skeleton
3. Define your views
4. Divide and conquer
5. Abstract your problems
6. Iterate over steps 4 and 5
7. Final polishing
 Extra tips
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21. ITERATE OVER STEPS 4 AND 5
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22. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
1. Define the big picture
2. Create a skeleton
3. Define your views
4. Divide and conquer
5. Abstract your problems
6. Iterate over steps 4 and 5
7. Final polishing
 Extra tips
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23. FINAL POLISHING
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24. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
 Extra tips
1. ‘Pixel perfect’ is expensive
2. YAGNI!
3. Avoid blockages
4. Raise issues as soon as possible
5. Don’t improve unfinished things
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25. ‘PIXEL PERFECT’ IS EXPENSIVE
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26. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
 Extra tips
1. ‘Pixel perfect’ is expensive
2. YAGNI!
3. Avoid blockages
4. Raise issues as soon as possible
5. Don’t improve unfinished things
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27. YAGNI!
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28. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
 Extra tips
1. ‘Pixel perfect’ is expensive
2. YAGNI!
3. Avoid blockages
4. Raise issues as soon as possible
5. Don’t improve unfinished things
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29. AVOID BLOCKAGES
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30. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
 Extra tips
1. ‘Pixel perfect’ is expensive
2. YAGNI!
3. Avoid blockages
4. Raise issues as soon as possible
5. Don’t improve unfinished things
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31. RAISE ISSUES AS SOON AS POSSIBLE
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32. HOW TO IMPROVE EFFICIENCY
 The problem
 The guidelines
 Extra tips
1. ‘Pixel perfect’ is expensive
2. YAGNI!
3. Avoid blockages
4. Raise issues as soon as possible
5. Don’t improve unfinished things
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33. DON’T IMPROVE UNFINISHED THINGS
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34. RECAP
1. Define the big picture
2. Create a skeleton
3. Define your views
4. Divide and conquer
5. Abstract your problems
6. Iterate over steps 4 and 5
7. Final polishing
1. ‘Pixel perfect’ is expensive
2. YAGNI!
3. Avoid blockages
4. Raise issues as soon as
possible
5. Don’t improve unfinished
things
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35. QUESTIONS?
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36. THANK YOU!
Sergio Tomás Ortiz
Senior Android Engineer at BADOO LTD
@Disruption
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