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#domain-driven-design

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Optional is not your domain

I've gone through several phases in the way I represent absence in Java. At first, I returned null. Then I discovered Optional, and started returning it everywhere. It felt like progress, and it was.

iwtyo.today

Mike YoungSep 10 · 8 min read

Knowledge must be usable beyond its source

A strategy can make perfect sense in the room where it was written and still be almost useless everywhere else. The people in that room remember the discussion, the rejected alternatives and the diffi

blog.unplugit.fi

Oluwaseyi FatunmoleSep 1 · 26 min read

Feature Modularization in Flutter: How to Combine Clean Architecture and Domain-Driven Design for Self-Contained, Scalable Features

As an engineer working on a small team, your current structure could fly. But what if your team, all contributing to the same codebase, reaches 20 or more people at scale? You'll need careful design t

freecodecamp.org

Mike YoungSep 1 · 9 min read

Alignment Needs Bounded Ownership

When organisations talk about alignment, the conversation often moves towards shared goals, shared terminology and common ways of working. That sounds reasonable. It can also lead to a harmful conclus

blog.unplugit.fi

Mike YoungAug 18 · 9 min read

Software development has always been an alignment problem

The phrase alignment problem is now strongly associated with AI safety. In that discussion, the concern is whether an AI system behaves consistently with human values and intent. That is not the subje

blog.unplugit.fi

Wasinjesu OsokoAug 12 · 3 min read

Building Products Businesses Actually Pay For: Domain-Driven Design in Practice

Most enterprise software projects fail not because of slow frameworks or buggy code, but because of a fundamental disconnect: developers write code for developers, while businesses pay for solutions t

wasinjesu-osoko.hashnode.dev

Mike YoungAug 12 · 8 min read

AI-assisted development needs boundaries

Most writing about AI-assisted development seems to settle into three positions. There is the productivity account, where an agent is judged by how quickly it turns a ticket into code, the prompting a

2 blog.unplugit.fi

Mike YoungAug 6 · 9 min read

Internal, External, and Contract Models Should Not Be the Same Thing

Discussions about model separation often end up being discussions about boilerplate. One object arrives at a service boundary, most of its fields are copied into another object, and a similar conversi

1 blog.unplugit.fi

Oluwaseyi FatunmoleJul 16 · 31 min read

The Observer Design Pattern Handbook: Event-Driven Architecture & Domain-Driven Design in Dart

Every application, at some point, has to deal with a fundamental challenge: something happens, and several other things need to react to it. A user logs in, and the app needs to save a token, cache th

freecodecamp.org

Remco KoedootJun 26 · 7 min read