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Problem (40 points) Prepare an Entity Relationship diagram with the cardinalities for the following business rules: 1. The purchasing department prepares a purchase order, which is sent to a supplier, although ea 2. A supplier is able to ship many different inventory items, although each inventory item can be 3. 4. Each department has only one supervisor. Supervisor must oversee at least one department, but supplier can make many orders. ordered from a specific supplier Each department has at least one employee. Employees must be assigned to at least one, but possibly more departments possibly more departments.
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type charge phone) Customer Service 1 name cost address Belongs to Subscribes Linked to Account Equipment accountNo IDNumber type

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