#1: Define the following as they relate to entity relationship diagrams.

• Entity
• Attribute
• Relationship
• Cardinality

#2: I would like you to look at the following E-R diagram example and explain what it is showing. Be sure to cover all aspects of the representation:

http://www.metacase.com/methods/er_example.html

#3: Draw the entity relationship diagram for this problem. My sales representatives have many customers that they are responsible for. My customers can place 1 to many orders. Each order can be made up of 1 to many items from my inventory. Each item can be stored in a variety of different warehouses (every warehouse does not necessarily have every item). I want to see the entities and their relationship. Name the entity and the relationship and also indicate the relationship (1 to 1, 1 to many, many to many). Modify the chart to show attributes. Finally, please layout the tables that would be created (including keys)

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