Domain Folder constraints are less important than hierarchy constraints, as it typically does not require a user to select a folder. Due to this, it is recommended to limit complexity of Domain Folder Object Types. To preserve a basic integrity of data, it is recommended to create separate Object Types per data domain.
ID Patterns
Use auto-generated STEP IDs for Entities and Data Containers managed by STEP. For information on auto IDs, refer to the Autogenerate Using Name Pattern and ID Pattern topic of the System Setup documentation here.