Planual rules regarding modules.
2.01-01 Polaris: Model with natural dimensionality
You shouldn't have to create concatenated lists in Polaris. With that said, don’t create modules with every dimension, only use dimensions that are needed. Be aware of the end user and how they will interact with the module. Aim to create an overall user experience that will help them find specific data quickly and easily.
2.01-02 Polaris: Dimensional Order
Dimensional order in Polaris doesn't matter like it does in Classic.