Grouping of objects

Hello everyone!
I'm trying to figure out how to properly set up grouping of objects in the model.
What method to use to include a grouping or hierarchy in the model to move all objects together?
I created an empty object in Blender, then set it as the parent object, for all objects in the model, so that moving the empty object automatically moves all objects together.
I don't know if it is correct to use this method, and more importantly what is the method required by buyers?

Thanks for the help!