Thankyou Tomohare for taking the time to explain, I’ll admit that I’m very much out of my depth on this topic and only understand some basic principles of how all the game elements fit together. From what I gather from your above posts your original idea is in fact a very good one.
I learned something new today! 
No problem, but remember that is all guessing, they probably use something more clever.
Hello guys
It is unique in a way that it saves huge amounts of time and money for developers. Imagine that you want to have 1000 unique and detailed characters in your game. You can of course create 1000 unique characters or you can use our system and create just a few parts and uniquely “lay” and combine them.
Visually you probably won’t see any difference, becouse all we can do with it can be done by creating every possible combination manually by dozens of concept and 3D artists. But it will save us time and money which we can invest elsewhere and make the core of our game better.
I love the system (it reminds me a lot of the old Might&Magic series and other games of that era), but I’m not sure what exactly seperates it from the system used in Morrowind, for example. Anyway, it’s great to see someone doing it again.
ok - so the ‘uniqueness’ is in the efficiency and reusability - with car analogy - the car would still drive and move around, but the KCD car needs 1L per 100Km whereas other engines / cars would need 20L per 100Km (?)
Well yes. So if you have a business and you have this car you can now afford another employee who will make your product better.
It’s more realistic too. A man at arms would have a tunic, gambeson, plate harness and perhaps a surcoat over all of that.
well - you as end-user would not recognize it - whether KC-D way or all those manually created combinations…
in The Elder Scrolls III you have at least 3 layer dress-armor-tunic if I’m remember right =)
But visible is just one. And all clipping together.
And the medieval nerds/reenactors/historians/archaeologists love it for its realism… 
This might be relevant to the starships ins tar citizen… but that game needs hundreds of thousands of characters… so the system is pretty relevant for help making the characters, their clothing, gear and weapons.
making wool clothing or a spacesuit should not be that different…
I think its just a cool new idea to be done. But of course the clipping issues is what makes it difficult.
