It's a small world after all. Full edition Fall 2019

The world is changing fast. More precisely, the world is changing at increasing speed.

This means things that were not possible five years ago come into reach. Incumbent organizations need to adapt fast to keep up with new competitors that use new technologies easier, faster and better than they do. As a result, every aspect of software changes towards smaller. Even smaller teams or even micro-teams, less management, flatter organizations, even shorter cycles, and smaller components.

During this energizing and high-paced talk Sander discusses the Cynefin model, shows why software development goes so terribly wrong, how to move beyond Scrum and enterprise agile, why autonomy and self-organization are not as easy as it looks like, why traditional agile doesn't solve all modern-day issues, why continuous delivery leads to not doing projects or estimates anymore and why microservices are hard but essential as underlying foundation.

Transcript

1. SANDER HOOGENDOORN @aahoogendoorn November 2019 @aahoogendoorn | Creetion | It's a small world after all
2. THE TIMES THEY ARE A-CHANGIN' MUCH FASTER THAN YOU THINK @aahoogendoorn | Creetion | It's a small world after all
3. MOORE’S LAW The number of transistors in a dense integrated circuit doubles approximately every two years.
4. 1954 @aahoogendoorn | Creetion | It's a small world after all
5. 1981 THE IBM PC 5150 THE SIMPLEST CONFIGURATION HAS 16K ON-BOARD RAM AND USES AN AUDIO CASSETTE TO LOAD AND SAVE DATA. A FLOPPY DRIVE IS OPTIONAL. A HARD DRIVE WAS NOT SUPPORTED. A SYSTEM FOR HOME OR SCHOOL WITH A MEMORY OF 64K BYTES, A SINGLE DISKETTE DRIVE AND ITS OWN DISPLAY, WAS PRICED AROUND $3,000. @aahoogendoorn | Creetion | It's a small world after all
6. 2006 AMAZON EC2 AMAZON LAUNCHED ITS ELASTIC COMPUTE CLOUD (EC2) AS A COMMERCIAL WEB SERVICE THAT ALLOWS SMALL COMPANIES AND INDIVIDUALS TO RENT COMPUTERS ON WHICH TO RUN THEIR OWN COMPUTER APPLICATIONS. @aahoogendoorn | Creetion | It's a small world after all
7. ABOUT DISRUPTION @aahoogendoorn | Creetion | It's a small world after all
8. HOW LONG DID IT TAKE TO REACH 50 MILLION USERS? @aahoogendoorn | Creetion | It's a small world after all
9. @aahoogendoorn | Creetion | It's a small world after all FINTECH CHALLENGES Apple announces Apple Card credit card
10. WE LIVE IN A WORLD WHERE ANYONE CAN ENTER ANY MARKET, FROM ANYWHERE AT ANY TIME @aahoogendoorn | Creetion | It's a small world after all
11. WHERE SOFTWARE DEVELOPMENT WENT WRONG @aahoogendoorn | Creetion | It's a small world after all
12. ADDING FEATURE AFTER FEATURE @aahoogendoorn | Creetion | It's a small world after all
13. @aahoogendoorn | Creetion | It's a small world after all
14. @aahoogendoorn | Creetion | It's a small world after all
15. @aahoogendoorn | Creetion | It's a small world after all
16. @aahoogendoorn | Creetion | It's a small world after all DEPENDENCIES WILL KILL YOU EVERY TIME
17. Click here
18. INVENTORS OF SMART THERMOSTAT TOON @aahoogendoorn | Creetion | It's a small world after all
19. CHALLENGES AT QUBY SURVIVING IN SMART ENERGY @aahoogendoorn | Creetion | It's a small world after all
20. DISRUPTION CHALLENGE 1 @aahoogendoorn | Creetion | It's a small world after all
21. THE SMART ENERGY MARKET @aahoogendoorn | Creetion | It's a small world after all
22. LEGACY. WELL, WHO HASN’T GOT IT? CHALLENGE 2 @aahoogendoorn | Creetion | It's a small world after all
23. SO… NOW WHAT? @aahoogendoorn | Creetion | It's a small world after all
24. SANDER HOOGENDOORN Independent dad, speaker, author, traveler Freelance CTO, coach, architect, programmer CURRENTLY Chief Architect Quby BEFORE CTO ANVA, CTO Klaverblad Verzekeringen Global agile thought leader Capgemini sanderhoogendoorn.com aahoogendoorn aahoogendoorn sander@ditisagile.nl @aahoogendoorn | Creetion | It's a small world after all
25. @aahoogendoorn | Creetion | It's a small world after all
26. WELCOME TO THE WORLD OF SMALL MOVEABLE PARTS @aahoogendoorn | Creetion | It's a small world after all
27. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
28. THE CONTINUOUS CULTURE EVERYTHING WILL BE CONTINUOUS @aahoogendoorn | Creetion | It's a small world after all
29. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
30. COMPLEX PROBLEMS REQUIRE CONTINUOUS EXPLORATION @aahoogendoorn | Creetion | It's a small world after all
31. “We are operating in a new and fast moving market. Nobody has invented a profitable business model for this market yet.” Arnoud Snijder Quby WHERE ARE WE? @aahoogendoorn | Creetion | It's a small world after all
32. “In a chaotic context, searching for right answers would be pointless: the relationships between cause and effect are impossible to determine because they shift constantly and no manageable patterns exist — only turbulence. This is the realm of unknowables.” Dave Snowden CHAOTIC CONTEXTS @aahoogendoorn | Creetion | It's a small world after all “The chaotic domain is nearly always the best place for leaders to impel innovation.”
33. LEARNING BY DOING @aahoogendoorn | Creetion | It's a small world after all
34. WATERFAIL? @aahoogendoorn | Creetion | It's a small world after all
35. THE IRON TRIANGLE OF PROJECT MANAGEMENT? @aahoogendoorn | Creetion | It's a small world after all
36. DETAILED PLANNING? @aahoogendoorn | Creetion | It's a small world after all
37. FAVOR DELIVERING SMALL AND CONTINUOUSLY OVER EXECUTING PROJECTS @aahoogendoorn | Creetion | It's a small world after all
38. MONOLITHICAL SPEED OF CHANGE Q1 Q2 Q3 @aahoogendoorn | Creetion | It's a small world after all Monolith 1.0 Monolith 2.0 Monolith 3.0
39. @aahoogendoorn | Creetion | It's a small world after all DEPENDENCIES WILL KILL YOU
40. THE SPEED OF CHANGE WITH SMALL SERVICES Account 1.0 Product 1.0 Create Order 1.0 Manage Docs 1.0 Account 20 Account 3.0 Account 4.0 Product 2.0 Product 3.0 Product 4.0 Product 5.0 Product 6..0 Create Order 2.0 Create Order 3.0 Manage Docs 2.0 Manage Docs 3.0 Q1 Q2 Q3 @aahoogendoorn | Creetion | It's a small world after all
41. A LANDSCAPE OF SMALL SERVICES @aahoogendoorn | Creetion | It's a small world after all
42. @aahoogendoorn | Creetion | It's a small world after all
43. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
44. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
45. EVEN SHORTER CYCLES AGILE BEYOND CEREMONIES @aahoogendoorn | Creetion | It's a small world after all
46. (AGILE == SCRUM) @aahoogendoorn | Creetion | It's a small world after all
47. LOWERING OUR FENCES @aahoogendoorn | Creetion | It's a small world after all
48. DOGMAGILE @aahoogendoorn | Creetion | It's a small world after all
49. YOU CAN’T JUST STEP ON A BOARD AND HIT THE GROUND RUNNING @aahoogendoorn | Creetion | It's a small world after all
50. ALPINE SKIING REQUIRES KNOWLEDGE AND EXPERIENCE AND SO DOES SOFTWARE DEVELOPMENT @aahoogendoorn | Creetion | It's a small world after all
51. To satisfy the customer through early and continuous delivery of valuable software @aahoogendoorn | Creetion | It's a small world after all THE AGILE MANIFESTO
52. To satisfy the customer through early and continuous delivery of valuable software THE AGILE MANIFESTO @aahoogendoorn | Creetion | It's a small world after all
53. DELIVER SMALL AND CONTINUOUSLY @aahoogendoorn | Creetion | It's a small world after all
54. HOW OFTEN DO YOU RELEASE TO PRODUCTION? @aahoogendoorn | Creetion | It's a small world after all
55. CONTINUOUS FLOW @aahoogendoorn | Creetion | It's a small world after all
56. AUTOMATE EVERYTHING @aahoogendoorn | Creetion | It's a small world after all
57. TEST FROM DAY ONE @aahoogendoorn | Creetion | It's a small world after all
58. @aahoogendoorn | Creetion | It's a small world after all Manual tests Scenario tests Integration tests Unit tests Manual tests Scenario tests API test Unit tests
59. AUTOMATE ALL YOUR TESTS Unit testing Static code analysis Integration tests Performance tests
60. It talks to the database It communicates across the network It touches the file system It can’t run at the same time as any of your other tests You have to do special things to your environment (such as editing config files) to run it. Michael Feathers A TEST IS NOT A UNIT TEST IF @aahoogendoorn | Creetion | It's a small world after all
61. STATIC CODE ANALYSIS (SONARQUBE) @aahoogendoorn | Creetion | It's a small world after all
62. MINIMIZE MANUAL TESTING. IT SLOWS YOU DOWN Exploratory Testing, anyone? @aahoogendoorn | Creetion | It's a small world after all
63. ACCEPTANCE TESTING RENDERS OBSOLETE @aahoogendoorn | Creetion | It's a small world after all
64. @aahoogendoorn | Creetion | It's a small world after all
65. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
66. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
67. TRADITIONAL AGILE DOESN’T SOLVE MODERN ISSUES @aahoogendoorn | Creetion | It's a small world after all
68. LOW AVAILABILITY OF “RESOURCES” MODERN ISSUE @aahoogendoorn | Creetion | It's a small world after all
69. WE’RE EVERYWHERE @aahoogendoorn | Creetion | It's a small world after all
70. LOW AVAILABILITY @aahoogendoorn | Creetion | It's a small world after all
71. WE ALL NEED TO BE T-SHAPED @aahoogendoorn | Creetion | It's a small world after all
72. WORKING 9-TO-5 ? MODERN ISSUE @aahoogendoorn | Creetion | It's a small world after all
73. WHY 9-TO-5 FAILS 9-to-5 is a paradigm that prioritizes work over life One-size-fits-all doesn’t exist in current day society Excludes people who can’t commute Different people, different habits. Parenting is unpredictable ☺
74. THE PROGRAMMERS MIND MODERN ISSUE @aahoogendoorn | Creetion | It's a small world after all
75. HOW THE MINDS OF DEVELOPERS REALLY WORK @aahoogendoorn | Creetion | It's a small world after all
76. COMMUNICATION IS HARD MODERN ISSUE @aahoogendoorn | Creetion | It's a small world after all
77. Sprint planning Refinements Daily stand-ups Management meetings OKR meetings Demo’s Retrospectives TOO MANY MEETINGS AND RITUALS Skype calls Guild meetings Backlog grooming T-shirt sizing Planning poker Sprint reviews Open floor plans @aahoogendoorn | Creetion | It's a small world after all
78. CLEAR COMMUNICATION IS KEY @aahoogendoorn | Creetion | It's a small world after all
79. WE DON’T NEED MORE COMMUNICATION, WE NEED BETTER COLLABORATION @aahoogendoorn | Creetion | It's a small world after all
80. FULL DAY REFINEMENTS WITH THE WHOLE TEAM? @aahoogendoorn | Creetion | It's a small world after all
81. OPEN FLOOR PLANS OR HOW WE BECAME OUR COMPANY’S BROCHURE @aahoogendoorn | Creetion | It's a small world after all
82. AUTONOMY AND SELF-ORGANIZATION MODERN ISSUE @aahoogendoorn | Creetion | It's a small world after all
83. AUTONOMY AT WORK DECIDE WHAT TO DO, WHEN TO DO IT AND HOW TO DO IT @aahoogendoorn | Creetion | It's a small world after all
84. SELF-ORGANIZATION IS HARD @aahoogendoorn | Creetion | It's a small world after all
85. HOW TO DRAW AN OWL @aahoogendoorn | Creetion | It's a small world after all
86. AUTONOMOUS TEAMS? @aahoogendoorn | Creetion | It's a small world after all
87. THE LIVING ROOM WORK SPACE @aahoogendoorn | Creetion | It's a small world after all
88. SELF-ORGANIZATION DOES NOT MEAN MANDATORY FUN @aahoogendoorn | Creetion | It's a small world after all
89. FEWER RULES @aahoogendoorn | Creetion | It's a small world after all
90. MEDAN, INDONESIA. SEPTEMBER 2018 @aahoogendoorn | Creetion | It's a small world after all
91. DE MEERN, THE NETHERLANDS. JULY 2018 @aahoogendoorn | Creetion | It's a small world after all
92. WE SUCK AT ESTIMATION “MODERN” ISSUE @aahoogendoorn | Creetion | It's a small world after all
93. THE LAW OF LARGE NUMBERS @aahoogendoorn | Creetion | It's a small world after all
94. PLANNING POKER? T-SHIRT SIZING? @aahoogendoorn | Creetion | It's a small world after all
95. COUNTING BEATS PLANNING POKER @aahoogendoorn | Creetion | It's a small world after all
96. RED SPRINTS MODERN ISSUE @aahoogendoorn | Creetion | It's a small world after all
97. THE RED SPRINT ANTI-PATTERN @aahoogendoorn | Creetion | It's a small world after all
98. To satisfy the customer through early and continuous delivery of valuable software @aahoogendoorn | Creetion | It's a small world after all THE AGILE MANIFESTO
99. DEVELOPING SOFTWARE IS COMPLEX MODERN ISSUE @aahoogendoorn | Creetion | It's a small world after all
100. The programmer has to be able to think in terms of conceptual hierarchies that are much deeper than a single mind ever needed to face before. Edsger Dijkstra CONCEPTUAL HIERARCHIES @aahoogendoorn | Creetion | It's a small world after all
101. SOFTWARE DEVELOPMENT IS COMPLEX Architect Domain expert UX Front-end Back-end Mobile QA Ops AWS @aahoogendoorn | Creetion | It's a small world after all
102. THE CURRENT STACK Tools Enterprise Architect, IntelliJ, WebStorm, CLion, Visual Studio Code, LucidChart, Tableau, Zeplin PowerBi, QtCreator, Crowdin, PostMan, Jira, Confluence, Office365, TestFairy Languages JavaScript Java, C, C++, HTML, CSS, Scala, UML, SQL, Python, JSON, XML, Bash, Groovy, Lua, PHP, BoxTalk Frameworks Qt, Spring, Spring Boot, Spring Cloud Contract, Spring fox Swagger, Pact JVM, Resilience4j Liquibase, Slf4j, cypress.io, React, Backbone.js, Knockout, Mockito, Cucumber, Behave, Gurkin, node.js Lombok, JUnit, Debezium, dockerize, Serverless, CPPUtest, CUtest, Babel, Apache Spark, Hive Hibernate, QMF, Akka (Toolkit), Gatling, Apache CXF, TestNG, RestAssured Infra GitLab, Mesos Marathon, Consul, Jenkins, Sysdig, Apigee, count.ly, Docker, Terraform, Artifactory, Logstash Zookeeper, Coreos, ActiveMQ, Drupal, PagerDuty, Swagger, HTTP/s, MQTT, OpenVPN, Apache Tomcat Undertow, Jetty, AWS EC2, Beanstalk, S3, Lambda, CloudWatch, CloudTrail, SQS, SNS, Step Functions API Gateway, VPC, CloudFormation, IoT, ELB, GuardDuty, IAM, KMS, S3 Glacier, Elasticache Other Selenium, Kibana, ElasticSearch, MySQL, Redis, DataBricks, iWelcome, WSO2, OKTA, Cordova, Kentico Slack, Runscope, Liferay, Google Authenticator, Git, SonarQube, JWT, Google Repo, npm, Maven, Make Cmake, SBT, SOAP, Roadmunk, Illustrator, Runners, PhoneGap, ESLint, Z-Wave, Zigbee, WSL @aahoogendoorn | Creetion | It's a small world after all
103. THE (AGILE) FRAMEWORK DOESN’T DO THE WORK. IT’S YOU MODERN ISSUE @aahoogendoorn | Creetion | It's a small world after all
104. WHAT DOES BEING AGILE REALLY MEAN? @aahoogendoorn | Creetion | It's a small world after all
105. “WE ARE UNCOVERING BETTER WAYS OF DEVELOPING SOFTWARE, BY DOING IT AND HELPING OTHERS DO IT” AGILE MANIFESTO, 2001 @aahoogendoorn | Creetion | It's a small world after all
106. “WE ARE UNCOVERING BETTER WAYS OF DEVELOPING SOFTWARE, BY DOING IT AND HELPING OTHERS DO IT” AGILE MANIFESTO, 2001 @aahoogendoorn | Creetion | It's a small world after all
107. DOES AGILE SCALE? @aahoogendoorn | Creetion | It's a small world after all
108. ROLES IN DISCIPLINED AGILE 2.0 (OUTSIDE OF THE TEAM) Chief architecture owner Chief product owner Community of practice lead Database administrator Enterprise architect Functional manager Human resource manager Governor Operations engineers Process engineers Release engineers Reuse engineers Operations manager Process manager Release manager Portfolio manager Product manager Support manager Support engineers @aahoogendoorn | Creetion | It's a small world after all
109. Where’s the customer? DOES SCALING AGILE REQUIRE AN ENTERPRISE PROCESS? @aahoogendoorn | Creetion | It's a small world after all
110. @aahoogendoorn | Creetion | It's a small world after all SAFE 5.0. THEY’VE LISTENED?
111. @aahoogendoorn | Creetion | It's a small world after all SOCIOCRACY?
112. HOLACRACY AND HIERARCHY? @aahoogendoorn | Creetion | It's a small world after all
113. LET’S ALL COPY SPOTIFY! You are not Spotify! (unless you actually are Spotify) @aahoogendoorn | Creetion | It's a small world after all
114. ALWAYS THINK FOR YOURSELF! NEVER JUST COPY SOMEONE ELSE’S MODEL @aahoogendoorn | Creetion | It's a small world after all
115. KEEP IT SMALL AND SIMPLE @aahoogendoorn | Creetion | It's a small world after all
116. @aahoogendoorn | Creetion | It's a small world after all
117. OPTIMIZE FOR SPEED, AGILITY AND ADAPTABILITY THE INNOVATION BOARD AND THE FUNNEL @aahoogendoorn | Creetion | It's a small world after all Continue
118. THE DOT AT THE HORIZON “WE AIM TO BECOME THE MOST SOUGHT-AFTER CONSULTANCY IN EUROPE” @aahoogendoorn | Creetion | It's a small world after all
119. THE DOT AT THE HORIZON @aahoogendoorn | Creetion | It's a small world after all
120. YOU ARE HERE
121. MINIMAL VIABLE PRODUCTS Build products feature by feature Think small Deploy early and frequently Learn continuously
122. PORTFOLIO AND FUNNEL @aahoogendoorn | Creetion | It's a small world after all
123. PRODUCTS AND FEATURES @aahoogendoorn | Creetion | It's a small world after all
124. BOUNDED CONTEXTS Waste Energy Water @aahoogendoorn | Creetion | It's a small world after all
125. THE FUNNEL Waste Energy Water @aahoogendoorn | Creetion | It's a small world after all
126. PORTFOLIO BOARD Waste Energy Water @aahoogendoorn | Creetion | It's a small world after all
127. PORTFOLIO BOARD Waste Energy Water Is it actionable? Is it too big? Does it help us reach our goal? Do we need this now? Someyday maybe? @aahoogendoorn | Creetion | It's a small world after all
128. COLLECTIVES AND MICROTEAMS TOWARDS SMALLER, SHORTER, FASTER @aahoogendoorn | Creetion | It's a small world after all
129. TRADITIONAL TEAMS AGILE TEAMS @aahoogendoorn | Creetion | It's a small world after all
130. THE NEW COOL COLLECTIVE @aahoogendoorn | Creetion | It's a small world after all
131. A COLLECTIVE Water Secu rity Infr a Market research Architect UX Front-end Mobile QA Ops AWS Expe rt Dev @aahoogendoorn | Creetion | It's a small world after all
132. NO TWO WORK ITEMS REQUIRE THE SAME SKILLSET Architect Domain expert Back-end QA Architect Front-end @aahoogendoorn | Creetion | It's a small world after all
133. MICROTEAM RECIPE 1. Pick 2. Form 3. Discuss 4. Work 5. Report as done 6. Disband 7. Repeat
134. MICROTEAMS @aahoogendoorn | Creetion | It's a small world after all
135. MICROTEAMS IN REAL-LIFE @aahoogendoorn | Creetion | It's a small world after all
136. MICROTEAMS IN REAL-LIFE @aahoogendoorn | Creetion | It's a small world after all
137. MICROTEAMS IN REAL-LIFE @aahoogendoorn | Creetion | It's a small world after all
138. MICROTEAMS IN REAL-LIFE @aahoogendoorn | Creetion | It's a small world after all
139. WHY MICROTEAMS? Leadership is contextual Better communication Broaden your skills fast Sprints become less relevant Fewer estimates Refinements become easy Work where you want Work when you want Daily progress
140. @aahoogendoorn | Creetion | It's a small world after all
141. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
142. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
143. ENTER MICROSERVICES ARCHITECTURE THE WORLD OF EVEN SMALLER COMPONENTS THAT DO ONE THING ONLY @aahoogendoorn | Creetion | It's a small world after all
144. MONOLITHS HARD TO DELIVER HARDER TO TEST IMPOSSIBLE TO MAINTAIN @aahoogendoorn | Creetion | It's a small world after all
145. In short, the microservice architectural style is an approach to developing a single application as a suite of small services, each running in its own process and communicating with lightweight mechanisms, often an HTTP resource API. These services are built around business capabilities and independently deployable by fully automated deployment machinery. There is a bare minimum of centralized management of these services, which may be written in different programming languages and use different data storage technologies. Martin Fowler MICROSERVICES ARCHITECTURE @aahoogendoorn | Creetion | It's a small world after all
146. In short, the microservice architectural style is an approach to developing a single application as a suite of small services, each running in its own process and communicating with lightweight mechanisms, often an HTTP resource API. These services are built around business capabilities and independently deployable by fully automated deployment machinery. There is a bare minimum of centralized management of these services, which may be written in different programming languages and use different data storage technologies. Martin Fowler MICROSERVICES ARCHITECTURE @aahoogendoorn | Creetion | It's a small world after all
147. ARE YOU SOLVING THE RIGHT PROBLEMS? @aahoogendoorn | Creetion | It's a small world after all
148. SOLVING THE RIGHT PROBLEMS @aahoogendoorn | Creetion | It's a small world after all
149. WHO DOESN’T HAVE A SYSTEM THAT IS TOO BIG AND THAT SHOULD BE BROKEN UP? @aahoogendoorn | Creetion | It's a small world after all
150. ON-PREMISE LEGACY @aahoogendoorn | Creetion | It's a small world after all
151. ANCIENT LANGUAGES @aahoogendoorn | Creetion | It's a small world after all
152. AGING PROGRAMMERS @aahoogendoorn | Creetion | It's a small world after all
153. SO WHAT DID WE LEARN? @aahoogendoorn | Creetion | It's a small world after all
154. For the things we have to learn before we can do them, we learn by doing them Aristotle ON LEARNING @aahoogendoorn | Creetion | It's a small world after all
155. WHAT DID WE LEARN SO FAR? Define goals and purpose Take baby steps Define your roadmap Set up you guiding principles Model your landscape Apply evolutionary architectures Define your patterns Build apps as microservices Design for single responsibility Split in bounded contexts and aggregates Foster immutability Let services own their data Standardize your API design Avoid point-to-point contracts Interface defensively Architecture follows communication channels and vice versa Test from day one Secure by design Deploy independently and continuously Become cloud native Don’t innovate commodities Choose a cloud for simplicity and ease-of-use
156. FIONA CORE VALUES TRAVEL LIGHT We travel as light as possible. We only solve one small problem at a time. START CLEAN We isolate Fiona from our other stacks. We realize a clean new stack. DECIDE LATE Requirements and technology changes fast. Decisions are made as late as possible. KEEP IT SIMPLE Decisions favor simplicity and ease of use. What problem do we solve now?
157. ORGANIZE FOR CHANGE MICROSERVICES ARE NO WALK IN THE PARK @aahoogendoorn | Creetion | It's a small world after all
158. Organizations which design systems are constrained to produce designs which are copies of the communication structures of these organizations. Melvin Conway CONWAY’S LAW @aahoogendoorn | Creetion | It's a small world after all
159. Any change to communication patterns of groups and individuals will influence the shape of their solutions. Thus the design of a system will influence the de facto workings of an organization. Melvin Conway REVERSE CONWAY @aahoogendoorn | Creetion | It's a small world after all
160. Evolve your team and organizational structure to promote your desired architecture. Ideally your technology architecture will display isomorphism with your business architecture. Melvin Conway INVERSE CONWAY MANEUVER @aahoogendoorn | Creetion | It's a small world after all
161. INFRASTRUCTURE DOESN’T MATTER. YET NOT NOW. MAYBE LATER @aahoogendoorn | Creetion | It's a small world after all
162. It is not the strongest of the architectures that survives, nor the most complex that survives. It is the one that is most adaptable to change. Charles Darwin EVOLUTIONARY ARCHITECTURE @aahoogendoorn | Creetion | It's a small world after all
163. WRITE PROGRAMS THAT DO ONE THING AND DO IT WELL (FROM THE UNIX PHILOSOPHY) @aahoogendoorn | Creetion | It's a small world after all
164. DOMAIN DRIVEN DESIGN TACKLING COMPLEXITY IN THE HEART OF SOFTWARE MICROSERVICES @aahoogendoorn | Creetion | It's a small world after all
165. WHAT WE LEARNED LET SERVICES OWN THEIR OWN DATA @aahoogendoorn | Creetion | It's a small world after all
166. WHAT WE LEARNED STANDARDIZE API DESIGN @aahoogendoorn | Creetion | It's a small world after all
167. AUTOMATING PIPELINES @aahoogendoorn | Creetion | It's a small world after all
168. AUTOMATE EVERYTHING @aahoogendoorn | Creetion | It's a small world after all
169. DON’T INNOVATE ON COMMODITIES YOU CAN ONLY SPEND YOUR TIME ONCE @aahoogendoorn | Creetion | It's a small world after all
170. LESS INFRASTRUCTURE BECOMING CLOUD NATIVE @aahoogendoorn | Creetion | It's a small world after all
171. IMMUTABLE INFRASTRUCTURE Erwin John Frank Amazon, Microsoft, Google, … @aahoogendoorn | Creetion | It's a small world after all
172. MONOLITHS VERSUS MICROSERVICES? MÖNÖLIT MICRÖ @aahoogendoorn | Creetion | It's a small world after all
173. @aahoogendoorn | Creetion | It's a small world after all
174. IN RETRO SPECTIVE SOME FINAL THOUGHTS @aahoogendoorn | Creetion | It's a small world after all
175. COMPLEX PROBLEMS REQUIRE CONTINUOUS EXPLORATION @aahoogendoorn | Creetion | It's a small world after all
176. IN EVEN SHORTER CYCLES CONTINUOUS FLOW BUILD SMALL SERVICES FEATURES OVER PROJECTS WITH EVEN SMALLER TEAMS SELF-ORGANIZING AND AUTONOMOUS IN EVEN SMALLER COMPONENTS MICROSERVICES AND SERVERLESS @aahoogendoorn | Creetion | It's a small world after all
177. BEYOND THE POINT OF NO RETURN @aahoogendoorn | Creetion | It's a small world after all
178. @aahoogendoorn | Creetion | It's a small world after all
179. ALWAYS THINK FOR YOURSELF! NEVER JUST COPY SOMEONE ELSE’S MODEL @aahoogendoorn | Creetion | It's a small world after all
180. TAKE BABY STEPS ORGANIZE FOR CHANGE IF YOU GET STUCK, YOU’RE THINKING TOO BIG @aahoogendoorn | Creetion | It's a small world after all
181. IT ONLY TAKES ONE PERSON TO START A CHANGE: YOU @aahoogendoorn | Creetion | It's a small world after all
182. THE BEST INDUSTRY TO BE IN @aahoogendoorn | Creetion | It's a small world after all
183. THE BEST INDUSTRY TO BE IN @aahoogendoorn | Creetion | It's a small world after all
184. NEVER STOP LEARNING @aahoogendoorn | Creetion | It's a small world after all
185. AND NEVER FORGET TO HAVE FUN @aahoogendoorn | Creetion | It's a small world after all
186. @aahoogendoorn | Creetion | It's a small world after all
187. IF ALL ELSE FAILS, TRY RM –RF NODE_MODULES && NPM INSTALL @aahoogendoorn | Creetion | It's a small world after all
188. REFERENCES AND QUESTIONS www.sanderhoogendoorn.com aahoogendoorn aahoogendoorn sander@ditisagile.nl quby.com/careers sanderhoogendoorn.com/decks-and-handouts