Más contenido relacionado Similar a A CTO always pays his debt - Agile Tour Bordeaux 2017 (20) A CTO always pays his debt - Agile Tour Bordeaux 20171. "UN CTO PAIE TOUJOURS
SES DETTES."A Story of a Technical Refactoring led the Lean way with Product Mangement!
: @HERVELOURDIN - HERVE@VIDEDRESSING.COM
3. ▸ CTO & Co-dirigeant chez Videdressing
▸ Adepte et praticien Lean, Agiliste pragmatique
▸ Team Builder
▸ Ex Lean & Agile Partner chez @OCTOTechnology
▸ Co-founder of @AppaloosaStore
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4. SAY HI TO
JÉRÔME !SENIOR PRODUCT MANAGER AT VIDEDRESSING
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5. A Product Manager always pays his
debts.
— T. Lanister
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6. A Product Manager CTO always pays his
debts.
— T. Lanister
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7. AGENDA
▸ Who we are?
▸ Why a Refactor project?
▸ How to communicate about it?
▸ How to prioritize it?
▸ How about the practices?
▸ Learnings & Take-aways
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10. 1 - WHO WE ARE?
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13. LEAN / AGILE ORGANIZATION
▸ Product & Tech teams working on the same floor, 1 common spirit
▸ cross-functional team: PO, front & back developers, Designers
▸ iterative & incremental development: test fast, learn fast, improve
▸ 2 weeks scrumban iterations
▸ Release on the flow
▸ Stakeholders are integrated into projects
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14. 2 - WHY A REFACTORING
PROJECT?
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15. A SIMPLE PLUG N' PLAY PROJECT
ABOUT A NEW MEAN OF PAYMENT
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16. THE WAY WE LIKE TO
SEE OUR PLATFORM
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17. THE WAY IT IS FOR REAL...
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18. THE plug n'Play PROJECT
...TURNED OUT TO BE A COMPLETE FAILURE
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20. THE 4 HORSEMEN OF
THE TECHNICAL APOCALYPSE
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26. 3 - HOW TO COMMUNICATE
ABOUT A REFOACTORING
PROJECT?
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27. HOW TO TELL TO A BOARD?
(AND EXPLAIN)
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28. HOW TO TELL ABOUT TECHNICAL DEBT?
▸ Show the effects (the 4 horsemen will help)
▸ Calculate and communicate the financial impact
▸ Come with a plan
▸ Design a business oriented plan
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30. 4 - HOW TO PRIORITIZE SUCH
PROJECT?
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31. ▸ Trying to (re)understand how the machine is working
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33. FAILED AT TRYING TO GET THE TRUTH FROM THE CODE
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37. THIS PROCESS MAP WAS THE
real first“release” OF THE PROJECT
... AND KILL SOME GOOD OLD MYTHS ABOUT IT WAS MEANT TO WORK
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38. ANALYSIS CONCLUSIONS
Payment & Order system is our spine. Having a seamless customer
experience from online to offline is a physiological need. We must
address it in priority.
AtoZ rebuild of our payment system & order lifecycle
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39. THE HARD DECISIONS
▸ Stop or postpone other projects
▸ Dedicated TaskForce for next 9 months
▸ No bug fixes on legacy anymore
▸ Accept to decrease the quality of service to improve it afterwards
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40. EXPLAIN EXECUTIVE TEAM & STAKEHOLDERS
WE WILL NOT RELEASE BIG FEATURE
FOR THE NEXT 9 MONTHS
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41. YES, ROADMAP IS Coming
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43. THE PLAN:
DEPENDING ON THE BUSINESS IMPACT AND
THE POTENTIAL RISK, WE PRIORITIZED THE
MOP DEPLOYMENT BY PLATFORM
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44. RELEASE THE LEAN WAY
▸ Slice for the fastest way in production
▸ Mitigate risks with Feature Toggles
▸ ... and Rollback
▸ Do not create all the tools day one
(simple spreadsheet is ok)
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46. THINK ABOUT FEATURE FLIPPING &
“FEATURE CAPPING” AT THE
BEGINNING OF THE PROJECT
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48. 5 - MEANWHILE WITH THE
TECH & PRODUCT TEAM
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55. DEVOPS SUPPORT
▸ Fully Dockerized dev environment
▸ Fresh dataset automation
▸ Keep syncing with master branch whenever
you can
▸ Deploy on a testable feature branch
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56. THE LEGACY ROOMATE
▸ Do not feed the monster
▸ Starve the monster whenever it's possible
▸ Separate bundles in the new platform
▸ Make the new services more desireable than the easy (dark) one
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57. 6 - LEARNINGS &
TAKE-AWAYS
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58. RESULTS
▸ 95% of orders are now processed on the new system
▸ bug free
▸ easy to track/reconciliate
▸ Very positive impact on Customer Care contact rate
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59. RESULTS
▸ Enabler for Mobile platforms better performance
▸ From 40% to 50% of mobile contribution in sales
▸ The user/order lifecyle is now readable, not only developers
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60. WHAT WE HAVE LEARNED?
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61. MISTAKES
▸ Postponing information to board/exec team
on platform state
▸ Took too much time to decide the refactoring
▸ Spent too much energy to solve bugs instead
rebuilding
▸ No unified & shared documentation on
business process
▸ Stakeholders not enough involved & informed
once the project was launched
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62. OTHER LEARNINGS
▸ The monster will not die before long
▸ But you can "contain" it
▸ Mob(ish) programming is cool for tricky
design phase
▸ Never skip code reviews
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64. Merci !
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66. HERVÉ LOURDIN - @HERVELOURDIN
FOLLOW US AT @VD_LABS
SAY HELLO! AT: HELLO@VIDEDRESSING.COM
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