Beyond Craft - Revisiting Our Relationship with Software Craft [NewCrafts 2023]

14 years after its debuts as a movement, Software Craft is still alive and well, with more and more company adoption and with the best conferences even having "Craft" in their names! But the world changed since 2009, with new technologies now mature or mainstream, and even more disruptions coming in.

Moreover, the success of Craft also comes with some fetishism which can be worrying. In this session, we'll review the history of Software Craft so far and what's been accomplished through it. Most importantly, we'll suggest how to reconsider your attachment to it, how to fully embrace and get the best out of each shinny novel thing, and where to invest learning in an increasingly post-craft universe!

Conference talk presented at NewCrafts 2023 in Paris: https://ncrafts.io/speaker/cyrillemartraire

Transcript

1. BEYOND CRAFT CYRILLE MARTRAIRE arolla.fr @arollafr REVISITING OUR RELATIONSHIP WITH SOFTWARE CRAFT
2. 
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3. Wow. That’s very old, isn’t it?
4. http://www.meetup.com/paris-software-craftsmanship/ PARIS SOFTWARE CRAFTERS COMMUNITY Since 2011. 4600+ members
5. That’s a lot of people, isn’t it?
6. ‘CRAFT’ IN THE NAME OF THE BEST CONFS
7. @AROLLAFR CRAFT?
8. @AROLLAFR DO WE STILL NEED TO CARE?
9. Let’s explore that together!
10. arolla.fr @arollafr
11. arolla.fr @arollafr TDD BDD DDD 100% CRAFT SINCE 2009
12. arolla.fr @arollafr crafting architecture
13. @cyriux
15. @AROLLAFR CRAFT?
17. Software Development, 1999
18. Enterprise Java Beans Vendor-driven complexity
19. ”Complexity is cool” DAO Factory (Factory)
20. Planning rulz!
21. Detailed Design Specs
22. UML/MDA! ”Coding is a dirty job”
24. ”I wanna become project manager after 2 years” Rando m Junior Developer
30. Ward Cunningham
31. Kent Beck
32. What if we worked differently?
33. PATTERNS + WIKI + XP + CRC Cards (…)
35. AGILE MANIFESTO
36. in reaction to abuses
37. WHEW! (saved my life)
38. Agile is now The New Norm
39. Now you’re a Scrum Master!
43. Ooops!!! we’ve done it again!
44. http://fr.slideshare.net/MozaicWorks/sandro-manucos-software-craftmanship-pdf
45. "Code does not matter" Scrum gone bad
47. Software Craftsmanship Manifesto
49. Engineering practices matter!
50. in reaction to non-sense
51. software craft
52. REACTION a
53. REACTION a to a REACTION
54. Software Craftsmanship
55. Software Craftsmanship
56. Software Craft
57. @CYRIUX Craft RAISING THE BAR WORKING CODE IS NOT ENOUGH
58. Build the right thing. Build it right.
59. PROGRAMMING BY COINCIDENCE
60. CRAFT = Desirable benefits
61. @CYRIUX BENEFITS TIME TO MARKET RELEASE FREQUENCY DEFECTS BY RELEASE TIME TO RECOVER EASIER EVOLUTIONS & MAINTENANCE REDUCED COST OVER TIME MORE VALUES DELIVERED DIGITAL FRUGALITY
62. CRAFT = selected PRACTICES
63. @CYRIUX PRACTICES SELECTING THE BEST TECHNIQUES AVAILABLE NOW
64. TDD BDD DDD Legacy Continuous Delivery Software Craftsmanship FP -style Clean Code since 2009 DevOps
65. The best techniques available often look like heresy
67. Test only once it’s Done Start with tests
70. Test = Just enough Speci fi cation Code = Just enough Code Refactor = Just enough Design TDD
71. TDD - MATURITY SCALE NO TEST TEST-AFTER TEST-FIRST TDD
72. Pair-Programming
75. Driver-Navigator
76. "Full Team, Full Throttle "
77. TDD BDD DDD Legacy Continuous Delivery Software Craftsmanship FP -style Clean Code DevOps
78. http://nw.wea.org.uk/blogs/extending_learning_coversations.php •Face to face IRL (travel ) •Telephon e •Cha t •Email Langage métier Conversations
79. The 3 amigos
80. BDD Collaboration. Early. Continuously.
81. @CYRIUX devops Ops Dev
82. DevOps. Collaboration. Early.
83. DevOps. Automation.
84. DevOps. Automation. Automated tests. A lot.
85. TDD BDD DDD Legacy Continuous Delivery Software Craftsmanship FP -style Clean Code
86. Wanna change the code? Code says No.
87. Legacy Code Legacy Teams
88. TDD BDD DDD Legacy Continuous Delivery Software Craftsmanship FP -style Clean Code
89. Modular architectures
90. @cyriux Fraud Détection Payment Gift Cards n mpany ting Review Shopping Cart Bounded Contexts
91. Progressive Legacy Modernization
92. BIG BANG
93. @cyriux Fraud Détection Payment Gift Cards n mpany ting Review Shopping Cart REWRITE EXTERNALIZE KEEP AS-IS KEEP EXTRACT EXTRACT AS LIB
94. TDD BDD DDD Legacy Continuous Delivery Software Craftsmanship FP -style Clean Code DevOps
95. SCRUM + CRAFT = poor-man XP
96. CRAFT = ADAPT TO MODERN TECHS
97. @CYRIUX C, C++
98. @CYRIUX C, C++ SMALLTALK, JAVA
99. @CYRIUX RIGID & SLOW C++, ASM MALLEABLE & FAST JAVA, C#, JS, PYTHON
100. @CYRIUX RIGID & SLOW C++, ASM MALLEABLE & FAST JAVA, C#, JS, PYTHON Plan, execute Specs, code, test Separate tasks Start - Finish Iterate Specs+code+test Collaborate Continuous
102. Scrum ⋍ + Software Craft XP
103. + something more…
104. ”Learn to say NO”
107. 107 ”NO”
108. CRAFT = PROFESSIONALISM
113. Hygiene & Safety = Test + Refactor
115. Always changing Technologies
117. Shall we always re-learn everything?
118. NO
119. &WFSHSFFO
     "UUJUVEFT
120. THE SYSTEM = THE SOFTWARE + THE PEOPLE
121. Socio-Technical Architecture, Team Topologies
122. Baby Steps
123. micro-Size
124. micro -(service)
125. Taste for simplicity
126. The more standard the better fogus @fogus
127. Naming things is hard & important
128. Frugal dependencies
130. If something hurts, do it all the time!
132. Deployment is dangerous Deploy all the time
133. Continuous Delivery
135. 1PSUBCMF
     "UUJUVEFT
136. $SBGUJOH
     BMM
     UIF
     UIJOHT
137. Infra as Code.
138. Infra as Code. CRAFT
139. CRAFTING Data Products
140. (code, data)
141. (code, data) CRAFT General Purpose software development
142. (code, data) CRAFT CRAFT Data Engineering software development
143. Testing data?
144. Software developers have long known that automated testing is essential for managing complex codebases. Great Expectations brings the same discipline, confidence, and acceleration to data science and data engineering teams. UNIT TESTS FOR DATA: DEEQU, GREAT EXPECTATIONS
145. CRAFTING ML Solutions
146. Old Fashioned Code Machine Learning
147. ”It’s new and totally different, we don’t need your old practices”
148. https://research.google/pubs/pub43146/
149. Machine Learning: The High Interest Credit Card of Technical Debt ”Using the framework of technical debt , • boundary erosion, • entanglement, • hidden feedback loops, • undeclared consumers, • data dependencies, • changes in the external world, • and a variety of system-level anti-patterns” unfamiliar technology… …familiar stuff indeed!
150. CRAFT = Industry Impact
151. $SBGU
     PXO
     BCVTFT
152. Dogmatism.
153. DRY: Don’t Repeat Yourself But: DRY means Coupling
154. No Duplication in the small No Coupling in the large
155. EVERYTHING IS CONTEXTUAL
156. there’s no practice BEST
157. Learn a practice, and learn WHEN to use it or not
158. BE CAT-MATIC NOT DOG-MATIC
159. Elitism.
160. Teach / Coach / Help everyone!
161. Toxic leaders.
162. Quit / Fire.
163. Ethics of executing other people’s business ideas.
164. Entrepreneurship: why not?
165. Stuck in time.
166. What about innovations?
167. "Oh it’s just the same old thing" With a new name.
168. Cloud "Oh it’s just hosting"
169. @CYRIUX @CYRIUX No more. Highly managed cloud is about new opportunities: speed, elasticity, fast innovation, cost structure… This is achieved through a new architectural style. "Cloud is just hosting"
170. serverless
171. 80% same old thing. 20% different. Still a game-changer overall.
172. "DUJWFMZ
     EJH
     XIBU`T
     SFBMMZ
     OPWFM
173. Remember how automated memory management changed our lives?
174. Event-Driven Architecture: "Oh it’s just async messaging"
175. Event Bus / Observer pattern Ticke t Booked Bookin g Service Bookin g Confirmed Inventor y Service Bookin g Cancelled Capacit y Updated Ticketin g Service CHANGE IN ONLY 1 PLACE
176. Event Bus / Observer pattern Ticke t Booked Bookin g Service Bookin g Confirmed Inventor y Service Bookin g Cancelled Capacit y Updated Ticketin g Service Notificatio n Service CHANGE IN ONLY 1 PLACE
177. 01&/$-04&
     13*/$*1-& 1MVH
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     TFSWJDFT CHANGES IN ONLY 1 PLACE
178. Actively dig what’s really novel
179. No code / low code? "Oh it’ll never work!"
182. chaos engineering "Oh WTF?!"
183. Testing in production https://www.infoq.com/presentations/testing-production-2018/
185. Progress HERESY through
186. ”The line between innovation and stupidity is a thin line.” OH on Twitter by @bertails
187. LLM’s (ChatGPT, Copilot)
188. *U`T
     BCPVU
     $0.1-&9*5: SFBMMZ
189. COMPLEXITY THINKING = OUR NEW OPERATING SYSTEM
190. SAFE-TO-FAIL PROBES DIRECTION & COHERENCE GRANULARITY AMPLIFICATION & DAMPENING WHAT DIDN’T WORK BUT COULD WORK NOW? … Cynefin
191. 20 YEARS AGO!
192. Wardley Mapping Residuality Theory
193. 3&$"1
194. KNOW THE HISTORY TO UNDERSTAND THINGS IN CONTEXT
195. SOFTWARE CRAFT AS NECESSARY IN A CONTEXT
196. SOFTWARE CRAFT STILL WORTH LEARNING (AMONG OTHER THINGS)
197. DON’T GET STUCK IN 2009
198. EXPECT TO BE SURPRISED BY GENUINE NOVELTY
199. "DUJWFMZ
     EJH
     XIBU`T
     SFBMMZ
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     */
     UIF
     OFX
     TUVGG
200. ‘CRAFT’ WILL END UP MEANING DIFFERENT THINGS TO DIFFERENT PEOPLE
201. WHAT WILL WE FOCUS ON AFTER WE NO LONGER FOCUS ON CRAFT?
202. THE REAL PURPOSE OF NEWCRAFTS?
204. Thanks! Cyrille MARTRAIRE @cyriux
205. References • Sandro Mancuso ”Agile Hangover” : https://www.infoq.com/articles/mancuso-software-craftsman/ • McKinsey Developer Velocity Index: https://www.mckinsey.com/industries/technology-media-and- telecommunications/our-insights/developer-velocity-at-work-key-lessons-from-industry-digital-leaders#/ • Mob Programming (Woody Zuill): https://mobprogramming.org/ • Testing in Production (Charity Major): https://www.infoq.com/presentations/testing-production-2018/ • Functional Core Imperative Shell: https://www.destroyallsoftware.com/screencasts/catalog/functional-core- imperative-shell • Property-Based Testing: https://blog.jessitron.com/2013/04/25/property-based-testing-what-is-it • Machine Learning: The High Interest Credit Card of Technical Debt: https://ai.google/research/pubs/pub43146 • Weird ideas to try in your team: @weirddev (Twitter) • My book: Living Documentation: http://www.informit.com/livingdoc • Université Devoxx 2018 sur l’architecture (YouTube, FR): https://www.youtube.com/watch?v=1igv2rHGKfo