1. Crafting Great Code
Harold Shinsato, Montana Code School, Open Space Institute
BigSkyDevCon June 10, 2017

2. Overview
Why Bother?
Mastery
 Modern Agile & the Software Craftsmanship Manifesto
 Frontiers of Psychology & Education
Leading Practices
 Test Drive Development, Design Patterns, S.O.L.I.D
Culture
 Team Sport
 Social Tech
Taking it Home

3. Why Craft Great Code?
Why Bother?
What do you think?

4. Mastery

5. Community & Conferences
 Attend, Support, Engage!

6. Legacy & Modern Agile
We are uncovering
better ways of
developing software
by doing and
helping others do it.
Through this work
we have come to
value …
http://agilemanifesto.org
http://modernagile.org

7. Software Craftsmanship Manifesto
Raising the bar.
As aspiring Software Craftsmen we are raising the bar of professional software
development by practicing it and helping others learn the craft. Through this
work we have come to value:
 Not only working software,
but also well-crafted software
 Not only responding to change,
but also steadily adding value.
 Not only individuals and interactions,
but also a community of professionals.
 Not only customer collaboration,
but also productive partnerships
That is, in pursuit of the items on the left we have found the items on the right
to be indispensable.
© 2009, the undersigned.this statement may be freely copied in any form,but only in its entirety through this notice.
http://manifesto.softwarecraftsmanship.org

8. From Dr. Christopher Avery
http://leadershipgift.com

9. ”Flow” – Mihály Csíkszentmihályi

10. Deliberate Practice
K. Anders Ericsson

11. Angela Duckworth

12. Carol Dweck –
Fixed vs. Growth Mindset

13. Daniel Coyle – Myelin Sheaths

15. Meta learning & Metacognition
Timothy Ferris – 6 months to mastery -
http://sebastianmarshall.com/community/110017
John Flavel – > 35+ years research
Thinking About Learning = More Learning

16. “Einstellung”

17. Paulo Friere – Teaching Peasants

18. Sharon Bowman – Better Trainings

19. Leading Practices

20. Clean Code – “Uncle” Bob Martin
cleancoders.com

21. Test Driven Development
Write FAILING Test First
Write
Simplest
Code To
Make Test
Pass
Refactor

22. Refactoring – From Smalltalk

23. Code Smells
 Duplicate Code (DRY Principle)
 Long Methods and Classes
 Long Parameter Lists
 Comments

24. Clever Code
“Debugging is twice as hard as writing the code
in the first place. Therefore, if you write the code
as cleverly as possible, you are, by definition, not
smart enough to debug it.”
- Brian Kernigan

25. Optimizing Code
“We should forget about small efficiencies,
say about 97% of the time: premature
optimization is the root of all evil.”
- Donald Knuth

26. S.O.L.I.D. Principles
 SRP: Single Responsibility Principle -
Do One Thing Well
 OCP: Open Closed Principle -
Open for Extension/Closed for Modification
 LSP: Liskov Substitution Principle -
Make subclasses usable where the superclass is
 ISP: Interface Segregation Principle –
Separate functionality that might change independently
 DIP: Dependency Inversion Principle –
High level modules independent of lower level with abstractions

27. Design Patterns

29. Code Katas & Dojos
“Pragmatic” Dave Thomas -> Martial Arts
 http://codekata.com/kata/codekata-how-it-started/
Coding Dojo inspired by Coding Katas
Randori Technique 2003 Paris Coding Dojo
 http://www.xpdays.de/2005/sessions/The_Coders_Dojo.html

30. Mob Programming
http://mobprogramming.org

31. #noestimates #zerobugs

32. Culture

33. Team Sport
Lone Wolf
Cowboy Coder

34. Google’s Project Aristotle
 Harvard Business School Professor - Amy Edmondson
 https://www.nytimes.com/2016/02/28/magazine/what-google-learned-from-its-
quest-to-build-the-perfect-team.html
 180 Team From Across Google
 SUCCESS FACTORS – Team Norms & Culture
 Psychological Safety
 Turn Taking – Overall Equal Participation

35. Charles Duhigg – “Power of Habit” guy

36. Social Technology

37. Jim & Michele McCarthy
Bozo Bit
Check-in Protocol
Ask For Help
Core Protocols

38. Open Space & Unconferences

39. Liberating Structures

40. Lean Coffee™
http://leancoffee.org

41. Improv!

42. Conversations
 Non-Violent Communication - Marshall Rosenberg
 Crucial Conversations – Patterson et. al.
 Fierce Conversations – Susan Scott
 Clean Language – David Grove
https://www.infoq.com/interviews/andrea-chiou-clean-language-clean-questions-
agile2014
 Language of Emotions – Karla McClaren
 The Five Love Languages – Gary Chapman

43. THANKS!
 Slideshare Link To Be Posted to my Blog
 http://shinsato.com
 harold@shinsato.com
Questions?
Comments?