Domain-Driven Design: The First 15 Years
Domain-Driven Design: The First 15 Years
Essays from the DDD Community
About the Book
Fifteen years after the publication of "Domain-Driven Design: Tackling Complexity in the Heart of Software" by Eric Evans, DDD is gaining more adoption than ever. To celebrate the anniversary, we've asked prominent authors in the software design world to contribute old and new essays. With contributions by Martin Fowler, James Coplien, Rebecca Wirfs-Brock, Mel Conway, and many more.
About the Contributors


https://uk.linkedin.com/in/scottmillett





I am helping teams and companies to develop brilliant solutions to complex problems. Sometimes this involves writing software. Sometimes this involves working with people. I like both ways, especially when it leads me into unexplored territories.
I've been coding since 1982, experimenting since ...forever? This led me into Agile, Domain-Driven Design, Lean, Complexity, Management 3.0 and everything needed in order to solve the problem.
I am a father, a husband, an entrepreneur, a consultant, a developer, a teacher, a public speaker, a cook, a drummer... now it's time to be a writer.
A glimpse of what I am into can be found on my blog, and I've been speaking in quite a few places lately. My presentation track is available here.
I run avanscoperta, one of the coolest places on earth to teach, learn and experiment.




Cyrille is co-founder of Arolla, a Paris-based company specializing in Software Craftsmanship. Cyrille is a developer with passion since 1999 in several startups, software vendors and banks. Passionate about design in every aspect (TDD, BDD, DDD), he also founded the Paris Software Craftsmanship community and is a regular speaker in Paris, Europe and US.
Still addicted to development, Cyrille dedicates a large part of his energy for clients, hands-on in the code, yet also deeply involved in the business analysis and company-scale transformation initiatives. Over the course of 15 years and many different projects in many contexts, he has tried with his colleagues and peers in other companies many non standard documentation techniques, some more successful than others, always with the end goal of harnessing documentation to raise the bar in software design as a result.







A lot of knowledge is lost when designing and building software — lost because of hand-overs in a telephone game, confusing communication by not having a shared language, discussing complexity without visualisation and by not leveraging the full potential and wisdom of the people. That lost knowledge impacts the quality and value of the software product being build. By leveraging Deep Democracy, Domain-Driven Design, Continuous Delivery and visual collaborate tools, Kenny Baas-Schwegler empowers organisations, teams and people in building valuable quality software products.
One of my core principles is sharing knowledge. I do that by blogging on my website baasie.com I also organise several meetups like Virtual Domain-Driven Design, Domain Driven Design Nederland, and I am a public speaker giving talks and hands-on workshops at conferences and meetups.


Mathias Verraes runs a boutique consultancy that advises organisations on designing and modelling software for complex environments, including architecture, analysis, testing, and refactoring “unmaintainable” systems. He has worked with clients in Finance, Government, Supply Chain, Mobility, Energy, E-Commerce, and more. He teaches Domain-Driven Design courses and curates the DDD Europe conference. When he’s at home in Kortrijk, Belgium, he helps his two sons build crazy Lego contraptions.


Table of Contents
- Foreword
- Distilling DDD Into First Principles — Scott Millett
- To DDD or not to DDD… What to do if your domain is boring? — Weronika Łabaj
- Discovering Bounded Contexts with EventStorming — Alberto Brandolini
- Emergent Contexts through Refinement — Mathias Verraes
- The Captain of the Night Watch — Indu Alagarsamy
- Traces, Tracks, Trails, and Paths: An Exploration of How We Approach Software Design — Rebecca Wirfs-Brock
- Ubiquitous Language - More Than Just Shared Vocabulary — Avraham Poupko
- Domain Modeling with Algebraic Data Types — Scott Wlaschin
- Domain Modeling with Monoids — Cyrille Martraire
- Enhancing DDD — Prof. David West
- Are you building the right thing? — Alexey Zimarev
- Multiple Canonical Models – Martin Fowler
- From Human Decisions, to Suggestions to Automated Decisions – Jef Claes
- Time — Jérémie Chassaing
- Agents aka Domain objects on steroids – Einar Landre
- Domain-Driven Design as Usability for Coders — Anita Kvamme
- Model Exploration Whirlpool – Kenny Baas-Schwegler
- Domain-Driven Design as a Centered Set — Paul Rayner
- DDD — The Misunderstood Mantra — James O. Coplien
- Free the Collaboration Barrier - Mel Conway
- 7 Years of DDD: Tackling Complexity in a Large-Scale Marketing System — Vladik Khononov
- Tackling Complexity in ERP Software: a Love Song to Bounded Contexts — Machiel de Graaf and Michiel Overeem
- Calm Your Spirit with Bounded Contexts – Julie Lerman
- Notes
The Leanpub 60-day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms
Do Well. Do Good.
Authors have earned$11,712,765writing, publishing and selling on Leanpub, earning 80% royalties while saving up to 25 million pounds of CO2 and up to 46,000 trees.
Learn more about writing on Leanpub
Free Updates. DRM Free.
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers), EPUB (for phones and tablets) and MOBI (for Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
Top Books
Recipes for Decoupling
Matthias NobackWrite software that survives
OpenIntro Statistics
David Diez, Christopher Barr, Mine Cetinkaya-Rundel, and OpenIntroA complete foundation for Statistics, also serving as a foundation for Data Science.
Leanpub revenue supports OpenIntro (US-based nonprofit) so we can provide free desk copies to teachers interested in using OpenIntro Statistics in the classroom and expand the project to support free textbooks in other subjects.
More resources: openintro.org.
CQRS by Example
Carlos Buenosvinos, Christian Soronellas, and Keyvan Akbary- Leverage your Software Architecture skills by learning everything about CQRS in detail with lots of examples
- Develop faster applications by applying CQRS and fostering Read Models and Projections
- Learn how to apply CQRS into a brownfield project from a pragmatic approach
Maîtriser Apache JMeter
Philippe Mouawad, Bruno Demion (Milamber), and Antonio Gomes RodriguesToute la puissance d'Apache JMeter expliquée par ses commiteurs et utilisateurs experts. De l'intégration continue en passant par le Cloud, vous découvrirez comment intégrer JMeter à vos processus "Agile" et Devops.
If you're looking for the newer english version of this book, go to Master JMeter : From load testing to DevOps
Ansible for DevOps
Jeff GeerlingAnsible is a simple, but powerful, server and configuration management tool. Learn to use Ansible effectively, whether you manage one server—or thousands.
C++20 - The Complete Guide
Nicolai M. JosuttisAll new language and library features of C++20 (for those who know previous C++ versions).
The book presents all new language and library features of C++20. Learn how this impacts day-to-day programming, to benefit in practice, to combine new features, and to avoid all new traps.
Buy early, pay less, free updates.
Other books:
Jetpack Compose internals
Jorge CastilloJetpack Compose is the future of Android UI. Master how it works internally and become a more efficient developer with it. You'll also find it valuable if you are not an Android dev. This book provides all the details to understand how the Compose compiler & runtime work, and how to create a client library using them.
The PowerShell Scripting and Toolmaking Book
Don Jones and Jeff HicksLearn the patterns, practices, and details of PowerShell Scripting and Toolmaking from the industry's two most recognized experts on the subject.
The C4 model for visualising software architecture
Simon BrownA guide to visualising your software architecture with the C4 model.
Mastering STM32 - Second Edition
Carmine NovielloWith more than 1200 microcontrollers, STM32 is probably the most complete ARM Cortex-M platform on the market. This book aims to be the most complete guide around introducing the reader to this exciting MCU portfolio from ST Microelectronics and its official CubeHAL and STM32CubeIDE development environment.
Top Bundles
- #1
Software Architecture
2 Books
"Software Architecture for Developers" is a practical and pragmatic guide to modern, lightweight software architecture, specifically aimed at developers. You'll learn:The essence of software architecture.Why the software architecture role should include coding, coaching and collaboration.The things that you really need to think about before... - #2
CCIE Service Provider Ultimate Study Bundle
2 Books
Piotr Jablonski, Lukasz Bromirski, and Nick Russo have joined forces to deliver the only CCIE Service Provider training resource you'll ever need. This bundle contains a detailed and challenging collection of workbook labs, plus an extensively detailed technical reference guide. All of us have earned the CCIE Service Provider certification... - #4
Pattern-Oriented Memory Forensics and Malware Detection
2 Books
This training bundle for security engineers and researchers, malware and memory forensics analysts includes two accelerated training courses for Windows memory dump analysis using WinDbg. It is also useful for technical support and escalation engineers who analyze memory dumps from complex software environments and need to check for possible... - #6
All the Books of The Medical Futurist
6 Books
We put together the most popular books from The Medical Futurist to provide a clear picture about the major trends shaping the future of medicine and healthcare. Digital health technologies, artificial intelligence, the future of 20 medical specialties, big pharma, data privacy, digital health investments and how technology giants such as Amazon... - #8
The Python Craftsman
3 Books
The Python Craftsman series comprises The Python Apprentice, The Python Journeyman, and The Python Master. The first book is primarily suitable for programmers with some experience of programming in another language. If you don't have any experience with programming this book may be a bit daunting. You'll be learning not just a programming...