As a Product manager and also a DDD enthusiast I use both of these mindsets to think about whether the software could've been architected differently to make users happier. How could these things be related? Well, according to my experiences when architecting a software or even when searching for subdomains, the result can be quite different when you really get to know your end users and incorporate these learnings into models.
In this talk I would like to show you the above through a concrete example: what happens if you don't understand your users' behaviour and more importantly if you don't realise that there might be different types of users using your product. Also I will show what to do if you don't have direct connection with the end users.