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/
@romeu @Cyriux I'm reading this one during your in memoriam

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

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

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
@malcircuit @stepheneb The Scout Mindset by Julia Galef describes how people are attach their identities to their beliefs, making it harder to update beliefs. She presents a remedy that I try to live by, which is to attach "I pride myself on updating my beliefs" to your identity.

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?

@malcircuit Great thread! I'm not an expert philosopher either, but it seems that at a large scale we're subjected to both epistemic violence and epistemological violence; oppression by deliberately attacking knowledge, and attacking the tools for gaining knowledge. With more impact than your dark matter example, cfr Jan 6, Tylenol, defunding science etc
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
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
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