Tag: Domain Driven Design

Clean Architecture + Bounded Contexts diagram

I’m happy to release a two Clean Architecture + Bounded Contexts diagrams into the public domain (CC0 1.0). I created these diagrams for Wikimedia Deutchland with the help of Jan Dittrich, Charlie Kritschmar and Hanna Petruschat. They represent… Read More

Clean Architecture + Bounded Contexts

In this follow-up to Implementing the Clean Architecture I introduce you to a combination of The Clean Architecture and the strategic DDD pattern known as Bounded Contexts. At Wikimedia Deutschland we use this combination of The Clean Architecture… Read More

Bounded Contexts in the Wikimedia Fundraising Software

In this follow-up to rewriting the Wikimedia Deutschland fundraising I tell the story of how we reorganized our codebases along the lines of the DDD strategic pattern Bounded Contexts. In 2016 the FUN team at Wikimedia Deutschland rewrote… Read More

Generic Entity handling code

In this blog post I outline my thinking on sharing code that deals with different types of Entities in your domain. We’ll cover what Entities are, code reuse strategies, pitfalls such as Shotgun Surgery and Anemic Domain Models… Read More

Implementing the Clean Architecture

Both Domain Driven Design and architectures such as the Clean Architecture and Hexagonal are often talked about. It’s hard to go to a conference on software development and not run into one of these topics. However it can… Read More

Notes: Implementing DDD, chapter 2

Notes from Implementing Domain Driven Design, chapter 2: Domains, Subdomains and Bounded Contexts (p58 and later only) User interface and service orientated endpoints are within the context boundary Domain concepts in the UI form the Smart UI Anti-Pattern… Read More

Missing in PHP7: Value objects

This is the third post in my Missing in PHP7 series. The previous one is about named parameters. A Value Object does not have an identity, which means that if you have two of them with the same data,… Read More