Hexagonal Architecture (Alistair Cockburn)

Learn from it’s creator the rules and structure of the “Hexagonal”, more correctly called the Ports & Adapters architecture. In this lecture, Dr. Cockburn will describe why he created it, its benefits and also its costs, the UML description, and also some sample code. As an extra challenge, he will invite you to write your first Ports & Adapters application in your favorite language /during/ the talk!

Outline of the lecture:

- Challenge to write a small application during the lecture
- Short form what the code looks like
- Costs, benefits, history: why was it needed
- Viewing your application as a component
- Development sequence
- Examples in Ruby & Java with needed terminology
- How to set up the folders
- The various ways to set up the architecture
- Why is it called /Hexagonal/?
- Summary, checking in with people who accepted the challenge

ABOUT ALISTAIR

Dr. Alistair Cockburn (pronounced CO-BURN) was named as one of the “42 Greatest Software Professionals of All Times" in 2020, as a world expert on methodologies, project management, software architecture, use cases and agile development. He co-authored both the Agile Manifesto in 1002. Since 2015 he has been working on expanding agile to cover every kind of initiative, including social impact projects, governments, and families.

Dr. Cockburn developed the “Hexagonal” or Ports & Architecture over several decades out of frustration seeing projects suffer from not being able to swap drivers and databases easily. For his latest work, see https://alistaircockburn.com/.

- LinkedIn: https://www.linkedin.com/in/alistaircockburn/
- Twitter: https://x.com/totheralistair
- GitHub: https://github.com/totheralistair
- Personal site: https://alistaircockburn.com/

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