[dgb23]

Now there is a difference from what the article is talking about and what you are talking about and I think that's quite important, because we tend to mix these things up often.

The article describes domain modeling, what you describe is computational modelling. The former lives at a higher abstraction closer to the user. The latter is about data processing.

A lot of people have mentioned DDD (or similar) in this thread, but I think that is an example of mixing up computational modeling and domain modeling. I think this is what object orientation and its descendants like micro services generally have been doing wrong: Applying domain structure at a level where it makes no sense anymore. This mismatch can add a lot of friction, repetition and overhead.