This, or these, attribute (s) are the candidate key (s) for the structure. The candidate key is also known as the primary key, or if a structure has multiple candidate keys, then one of them is ...

It's best practice to declare the foreign keys according to functional dependencies. E.g. if your other table is about salespeople, then its foreign key should refer to Salespeople.

The surrogate key, when used as a primary key, ensures that no semantics could ever be derived from a simple review of the table’s design. The surrogate-keyed fact table has no specific meaning at all ...