[vojant]

I fully agree, Ubiquitous Language is the key part of DDD. As long developers and business people understand processes and speak the same language you can achieve DDD using any patterns/languages/technologies.

In DDD what I find the most challenging are changes and context: e.g. in typical sass application marketing team speaks about customer that comes from PCP, but from sales perspective customer is the only company setup through CRM system. Same word but often processes are completely different (post-pay, pre-pay etc).

Sadly, I never work in a team that implemented fully DDD - mostly because it was too hard to engage all departments to think about processes - technology behind that was the easy part.

[arthurjj]

What's crazy is Ubiquitous language isn't even that hard to start doing. It starts with a common glossary. I like to use an internal wiki, but that's just me.

The harder part is getting people to use the language and not misuse the terms. Saying "You're saying you need a Foo, but it sounds like it's a Foo with an added Bar. Let's call it a FooBar to be clear" requires some effort to start doing.

[ebiester]

It depends on how big of a team you are.

It turns out that some of the most common terminology ends up being the most contentious. A Customer can be a different entity to sales, support, fulfillment, and finance.

As a small informal project, it has value, but madness also lies down that path.