Mathias Verraes

@mathiasverraes
1.6K Followers
127 Following
411 Posts
Student of Systems • Consultant @ Aardling • Curator @ DDD Europe • Author
I write on software designhttps://verraes.net/
Design and Realityhttps://leanpub.com/design-and-reality
Consultinghttps://aardling.eu/
DDD Europe conference organiserhttps://dddeurope.com/
Mathias VerraesFeb 22
Raghav AgrawalFeb 14

Splitting a Domain Across Multiple Bounded Contexts by Mathias Verraes @mathiasverraes

https://verraes.net/2021/06/split-domain-across-bounded-contexts/

Design and Reality : Essays on Software Design by Rebecca Wirfs-Brock, Mathias Verraes

https://leanpub.com/design-and-reality

Splitting a Domain Across Multiple Bounded Contexts

How designing for business opportunities and the rate of change may give you better contexts.

Mathias Verraes' Blog
Mathias VerraesNov 28
Information Is BeautifulNov 28

Pollution levels in Paris after they introduced bike lanes and car restrictions

Red = EU limits for Nitrogen Dioxide pollution

Original graphics by Atelier Parisien d'Urbanisme
https://www.apur.org

Mathias VerraesOct 15
I added three new tips to my article on "How to Read More Books". https://verraes.net/2012/12/2012-12-23-how-to-read-more-books/ I've been growing that list since 2012!
How to Read More Books

An ever-growing list of tips that help me read more books.

Mathias Verraes' Blog
Mathias VerraesSep 25, 2025
Mallory's Musings & MischiefSep 15, 2025

I feel like the theme of the 2020s is epistemology.

For those who aren't aware, epistemology is the branch of philosophy that deals with the nature of knowledge, as in,

- What does it mean to say you "know" something?
- What does it mean for something to be "truth"?
- What is "real"? How do you "know" that?
- What is the difference between "belief" and "knowledge"?
- What's the best way to go about finding more of this "knowledge" stuff, whatever it is?
- What are the limits of knowledge?

Mathias VerraesSep 25, 2025
Mathias VerraesSep 24, 2025
ICYMI: I wrote about how your domains and bounded contexts don't map 1 on 1. #DDDesign
https://verraes.net/2025/08/domain-and-bounded-contexts-dont-map-one-on-one/
No, Your Domains and Bounded Contexts Don’t Map 1 on 1

Bounded Contexts are a design choice to suit engineering needs

Mathias Verraes' Blog
Show threadMathias VerraesSep 24, 2025
Also, I now have a page explaining the usage of AI (or lack thereof) on my website. https://verraes.net/ai/
The idea to have it came from the /ai Manifesto, which proposes to have an /ai page "to promote trust and transparency" https://www.bydamo.la/p/ai-manifesto
AI usage

Student of Systems

Mathias Verraes' Blog
Mathias VerraesSep 24, 2025
ICYMI: I wrote about how your domains and bounded contexts don't map 1 on 1. #DDDesign
https://verraes.net/2025/08/domain-and-bounded-contexts-dont-map-one-on-one/
No, Your Domains and Bounded Contexts Don’t Map 1 on 1

Bounded Contexts are a design choice to suit engineering needs

Mathias Verraes' Blog
Mathias VerraesAug 28, 2025
No, Your Domains and Bounded Contexts Don’t Map 1 on 1. It sounds clean and logical, but it’s wrong. Read about it in my latest article: https://verraes.net/2025/08/domain-and-bounded-contexts-dont-map-one-on-one/
No, Your Domains and Bounded Contexts Don’t Map 1 on 1

Bounded Contexts are a design choice to suit engineering needs

Mathias Verraes' Blog
Show threadMathias VerraesAug 15, 2025
Come to think of it, it deserves a home on a place I own myself: https://verraes.net/2025/08/two-hard-problems-with-distributed-systems/
Two Hard Problems with Distributed Systems

A joke

Mathias Verraes' Blog
Show threadMathias VerraesAug 15, 2025
It's the 10th anniversary of this joke. I originally posted it on Twitter, and I felt it deserved a new home. It has been quoted in books, presentations, academic lectures, and t-shirts, and it's probably the only thing I'll be remembered for 🤣