Analyze a Supertype/Subtype ERD (a Subset of a Publisher Database ERD).List the attributes for Author. List the attributes for Employee.
Assignment 3: Entity-Relationship (ER) Modeling and the Use of Super/Sub Structures Outcomes addressed in this activity: Unit Outcomes: Define the construct of supertype and subtype. Identify overlap and disjoint subtypes. Identify completeness & disjoint constraints. Prepare an enhanced entity relationship (EER) model. Course Outcome: IT525-2: Use entity-relation diagrams in the design of a database. Purpose: This […]