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The Concept of Domain-Driven Design Explained

Sara Miteva on July 02, 2020

Using microservices means creating applications from loosely coupling services. The application consists of several small services, each representi...

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Carlos Gándara • Jul 8 '20

I would advise to not to take this article as a solid source of truth for what DDD means and implies. There are several inexact claims and a few of them plainly wrong. It may be slightly useful to start to get familiar with some of the DDD jargon but that's it.

Alin Purcaru • Jul 8 '20 • Edited

Thanks for doing the "good work" and promoting DDD. While I definitely see the positive side of promoting a difficult topic in an accessible way, I also share the opinion of some of the other commenters, that there is plenty of room for improvement. I'll try to be constructive, with some examples:

Grammar needs work. Even in the first paragraph we have this "[...], after what they are joint in a complex application." Should this be "[...], after that they are joined in a complex application."?
The article uses terms inaccurately or in a confusing way. "Microservices is an architecture design model" - I do not get the need for so many words mashed together - words that are partial synonyms. Why not "Microservices are an architectural style", or shorter "Microservices is an architecture"? How does it help if you use "design" and "model" additionally?
Some sentences are self-evident, or are simply not true. For example "Domain-driven design is the idea of solving problems of the organization through code." That is actually not true. Software in general is the idea of solving problems of the organization through code. DDD is something a bit more specific.

I actually thought about sharing this in my company, because there are so few accessible resources explaining DDD. But in its current form, I do not think it is usable in a professional environment. I'm confident that with a bit of rewriting it could be much more useful.

adro.codes • Jul 2 '20

Great article, definitely helped to clear up a few things for me 👍

Sara Miteva • Jul 3 '20

Thank you, very glad to hear that :)

Iván Casanova • Jul 7 '20 • Edited

This article really encouraged me to learn more about DDD. Thanks.

Sara Miteva • Jul 8 '20

Happy to hear that!

Federico Vázquez • Jul 3 '20 • Edited

This is probably one of the best posts about DDD. Short, clear, and concise. 👏

Sara Miteva • Jul 5 '20

Thanks Federico :)

Noah ISO8601 • Jul 16 '20

"Complexity is a relative term. What’s complex for one person is simple for another."

No. Difficulty -- easy or hard, familiar or unfamiliar -- is relative. Complexity -- whether things are intertwined such that they can't be reasoned about separately -- is objective.