[ERD] Rainbow Play Systems

Please draw an ERD based on following user requirements. Please make sure identify a primary key in each entity.

1. A Customer has following attributes: ID , First Name, Last Name, Street, State, Zip Code, Email, Phone, and Has_bought. A customer can have multiple phone numbers

2. An Employee has following attributes: Ssn, FirstName, LastName, Street, State, ZipCode, Email, Phone_number, and number of employees.

3. An Installer has following attributes: milage rate, and inherits Employees attributes. 4. A Sales Person has following attributes: commission rate, and inherits Employees attributes.

5. A Manager has a Start Date attribute, and inherits Employees attributes. 6. A Credit Card has following attibutes: Card Number, Exp-Date, Holder Name, Type, and CRV .

7. A Ware House has following attributes: Code, Street, State, Zip Code, and PhoneNumber.

8. A part entity has following attributes: SKU, Price, Quantity, and Description.

9. A swing set has following attributes: Size, Type, C_id, S_ssn, and Discount_Rate.

10. Location has following attributes: Code, Street, State, Zip Code, and PhoneNumber.

11. A customer pays with a credit card and a credit card belongs to a customer.

12. A customer may buy multiple swing sets and a swing set is sold to one customer.

13. An employee may works with one or more customers and a customer will be served by one employee.

14. Employees are divided into three types: Installer, Salesperson, and Manager.

15. A customer can make appointment with an installer and a salesperson.

16. Parts are stored in one or more warehouses and a warehouse can store many different parts.

17. Warehouses can be located in many different locations, and a location can have many warehouses.

18. A salesperson may sell many swing sets or none and a swing set will be sold by one sales person.

19. A swing set is composed of many parts and a part can be used in many different swing sets.