Presentation on Poka Yoke in Software which was delivered by Dhaval Doshi and Gurpreet Luthra at ThoughtWorks xConf in July 2012. For details refer to Blog Post: http://techie-notebook.blogspot.in/2012/07/poka-yoke-applying-mistake-proofing-to.html

1. POKA YOKE
The Science of Mistake Proofing
Gurpreet Luthra & Dhaval Doshi
(ThoughtWorks xConf – Bangalore – July 2012)

2. What is POKA YOKE ?

3. What is POKA YOKE ?
Poka YOKE
Inadvertent Mistake Prevent

4. What is POKA YOKE ?
The essential idea of Poke Yoke is to mistake proof the
manufacturing process --- so that mistakes cannot be
made or can be caught/fixed quickly.

5. Types
of Poka Yoke devices
Control
Warning

7. Pin Index Safety System (PISS)

9. Buckle Up!

10. Poka Yoke / Mistake Proofing
In Software

11. UI Mistake Proofing

12. UI Mistake Proofing

13. UI Mistake Proofing

14. Radiators
Unit Tests
IDEs

15. Compilers
Pre-commit
• Commit Message
• Developer Names
• New Files missed
• Build is RED check
• Run Unit Tests
Auto Save • Check-in to VCS

16. Architectural Controls
HttpSession
No updates
on GET
Context specific
injection

17. Architectural Controls
Run Under
Least Privilege
Primitives
Vs Types
Circuit
Breaker

18. Some more examples…
Password
Log Check Live Data
Testing
Keyboard
Shortcuts

19. What do you think?

20. Pragmatic
Mistake Proofing
Feedback
Blast
Radius

21. Distributed “Agile” !!
Remote Teams
Long Running
Projects
Legacy & Complex
Codebase
Team Attrition

22. Qualities of a Good Poka Yoke
Early
Precise
Painless
Simple

23. Instead of a BOLD font email,
Choose a POKA YOKE
Thank You