An ERM is dependent on the database type
---------- models are used in the conceptual design of databases, while ---------- models are used in the logical design of databases.
The ------ represents the conceptual database as viewed by the end user
is an attribute that identifies each instance of that entity.
is the attributes set of possible values
Key attributes are ------- when writing the relational schema, using the notation
is an attribute that can be further subdivided to yield additional attributes.