You can read this part: https://docs.mendix.com/refguide/associations/#ownership
But what an association is about, is the the "connection" made between 2 entities. When you make that association one or both entities can be the owner. It helps to change your domain model easier and to visualize how you can use your X-path. You can read this part: https://docs.mendix.com/refguide/associations/#ownership But what an association is about, is the the "connection" made between 2 entities. When you make that association one or both entities can be the owner. It helps to change your domain model easier and to visualize how you can use your X-path.