Object Persistence Design

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Map the following class diagram to the relational database.

$($Business rules$)$

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$-$ A product consumes many pieces of material. A piece of material is consumed in more than one product.

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$-$ A product appears on one or more orders. An order includes one or more products.

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$-$ A work center produces many products. Each product is produced in a work center.

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$-$ A customer may $($may not$)$ place many orders. Each order is placed by a customer.

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$-$ There are two types of employees: regular and temporary.

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$-$ An employee may $($may not$)$ be married to another employee.

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$-$ An employee may have more than one certificate.

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$-$ A work center is managed by a manager. A manager manages one product center. $$

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$-$ OrderCalulator calculates the total order amount for each order.$$

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$($Requirements$)$

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$-$ Map the class diagram to the relational database.