Domain Driven Design

DDD – you know the drill – if you don’t: know the drill!

Introduction materials

Webinar Session by Michael Plöd:

1. Overview and Core Values
2. Strategic Design
   (a very good introduction into context maps, also listen to some of the questions at the end!)
3. Internal Building Blocks
4. Domain Events & Event Storming
5. Implementing DDD

Books and readings

• The Original Book: Domain-Driven Design: Tackling Complexity in the Heart of Software by Eric Evans («the blue book»))
  The book is still valid today – even after 15 years. But it has shown that some important concepts are to far back in the book. 
  So there is an alternative reading order by Greg Young: read chapter 1-3, then skip to 11 to the end, then return to 3 and read to the end (yes, read chapters 11+ twice).
  I’ve made some notes for the «what we have learned from the book» video in a blog post.
• Implementing Domain-Driven Design by Vaughn Vernon.
• Conspectus – Before reading Domain Driven Design book of Eric Evans
• Domain Driven Design – CQRS
• Gist about DDD/CQRS/ES/Architecture videos

Short references

• Book Domain-Driven Design kompakt (ca 150 pages)
• Book: Vaughn Vernon’s Domain-Driven Design Distilled (ca. 160 Seiten)
• Book: Scott Millet’s The Anatomy of Domain-Driven Design (leanpub)
• Book: DDD Reference (oder in Deutsch auf leanpub)

Websites

• Virtual DDD – very nice website with lots of material and links that point you to get into DDD or push your knowledge even further.
• DDD Crew on GitHub

Related Methods

Event Storming

• Event-Storming, a method crafted by Alberto Brondolini to help extract boundaries from all the events in a system.
  • Awesome-Eventstorming – collection of event-storming materials on GitHub.
  • Awesome-Eventstorming Website (on Virtual DDD)
• The levels of Event Storming (Article)
• Big-Picture Event-Storming
  • This could be the biggest post about Big Picture Event Storming ever! And with examples! (Mr. Picky)
• Process-Level Event-Storming
  • Process Level Event Storming: let’s get this process started! (Mr. Picky)
• Design-Level Event-Storming
  • Blog Post Series about Design Level Event Storming, an Agenda, the Benefits and Tips & Tricks by Philippe Bourgau
  • Design Level EventStorming – INNOQ Technology Lunch (Youtube, Miro)
  • Design Level Event Storming with examples! (Mr. Picky)

Domain Events

• What are Domain Events (Blog Post)
• Domain Event (Fowler)
• Event Sourcing (Fowler)
• Domain Events vs. Event Sourcing (Blog Post), (English Version)

Blog Posts

• https://www.infoq.com/articles/ddd-contextmapping/
  An article that demonstrates context mapping, by Alberto Brandolini (Nov. 2009)
• Eric Evans – What I’ve learned about DDD since the book (gojko.net)

Videos

• YouTube: «All you aggregates are wrong» and the related Git repo: github.com/mauroservienti/all-our-aggregates-are-wrong-demos

Libraries

Let’s not overdo this

• jmolecules – A set of libraries to help developers work with architectural concepts in Java.