CSCI 3700 - Introduction to MIS Assignment 4-Entity Relationship Diagram Entity relationship diagrams document the relationships between entities in a database environment. The following is an example from the textbook (p 254) Address Name Email Ships Hem Orders Price Forwards Credit Card Creates Order Number Entity Relationship Attribute :0ne 0-Zero or more. Optional )-=Many In the above example, we can identify the entities (what would be tables within our database), the attributes (the items that describe the entity), the relationship (how are entities connected), and the cardinality (how many instances can exist in the relationship)