Irina Tsyganok

Knowledge-sharing session from XP2016, which I presented to the tech community at YOOX NET-A-PORTER Group

1. XP2016
2. ‘To further the state of agile and lean software development by providing a forum at which an international group of experts and novices from both industry and academia can meet and learn from each other’ XP2016 Mission
3. The People
4. Day 1. Digital Friction Lab Tom & Mary Poppendieck
5. Day 1. Digital Friction Lab - Objectives Customer Value Process Communication Code Base
6. Confirmation Bias Day 1. Digital Friction Lab - Key Takeaways
7. Day 1. Digital Friction Lab - Key Takeaways The Process Signals/Patterns Problem Statement Hypotheses Experiment Not Requirements Not Features Not Estimates Not a backlog of stories Do Multiple Experiments
8. Day 1. Digital Friction Lab - Key Takeaways Technical Debt Having technical debt is not a disaster. Disaster is defaulting on the debt.
9. Day 1. Digital Friction Lab - Key Takeaways Customer Journey Exercise
10. Highly Successful Digital Organisations Day 1. Digital Friction Lab - Conclusions Do • Constantly Evolving Products • Problems • Hypotheses • Full Stack Teams • Immediate Connection • Tests at Specification • Deployment Pipeline • Federated Architecture Don’t Do • Projects • Features • Estimates • IT • Outsourcing • Testing at the End • Periodic Releases • Monolithic Architecture
11. Day 2. Keynote: XP at Scale Elizabeth Hendrickson VP Engineering, Big Data
12. Day 2. Keynote Takeaways Hiring ‘Culture Fit” kills diversity
13. Day 2. Keynote Takeaways - Cross-team pairing - “Do it WITH me, not FOR me”
14. Day 2. Keynote Takeaways Allocation: optimizing for happiness Organisation = a mesh not a hierarchy Breakfast = “genius piece of social engineering” Don’t hire into leadership roles
15. Day 2. Keynote - Principles - Use Conway’s Law to your advantage - Separate “What” and “How” - Work at sustainable pace - Automate relentlessly - Ensure feedback cycles are fast - Teams own their own quality - Reflect, adapt, experiment
16. Keynotes - Takeaways Fascinating!
17. Day 2 - Symbiotic Design Practices Michael Feathers
18. Day 2 - Symbiotic Design Practices - Full Spectrum vs Full Stack Developer - Take advantage of Conway’s Law - dynamic reteaming - Legacy code = team lifetime != code lifetime - Feature deletion - The cost of change - Software like biology
19. Day 2 - Pair-programming from a beginner’s perspective Slides on Speaker Deck Paper on my blog
20. Day 3 - Exploiting Fast & Slow Thinking Rebecca Wirfs-Brock Coined meme ‘-driven’ in her paper OOPSLA 1989 (TDD, RDD, PDD)
21. Day 3 - Exploiting Fast and Slow Thinking Slides on SlideShare
22. Day 4 - Working Effectively With Legacy Tests https://github.com/dmcg https://github.com/npryce
23. Day 4 - Working Effectively With Legacy Tests Naming Purpose Working effectively with legacy tests
24. Day 4 - Closing Keynote Nat Pryce & Steve Freeman
25. Day 4 - Closing Keynote “Conceptual integrity is the most important consideration in system design” Fred Brooks The Mythical Man Month
26. Thank You