Marc Lelijveld walks us through an implementation of the Power BI composite model:
Have you been working with Composite Models in Power BI? Did you run into challenges while you did? Then this blog is for you! In this blog I will further elaborate on what the composite models (including DirectQuery for Power BI datasets) are and everything that comes into play when you start implementing them.
During this blog I will introduce you to topics like source groups, storage modes and relationship evaluation. All different topics that come into play when you start building composite models.
If composite models sound interesting, be sure to check this out.