Task:

Consider a retail database in which customers place orders. The data requirements are

summarized as follows:

The company's customers are uniquely identified by their identifier $($custID$).$ In

addition, their first and last names, password, and phone numbers are recorded.

A customer may place orders, and each order must be placed by exactly one

customer.

A unique item identifier $($iID$)$ is used to identify the company's items. In addition, the

item name, price, and quantity in stock are tracked.

Each order placed by a customer is given a unique order identifier $($oID$).$ Besides the

order identifier, the order date, shipping date, receiving date, pay amount, and

payment method should be documented.

Each order must include some items of a specific quantity and sale price. An item

may be included in an order.

Based on the above information, draw an E$-$R diagram using a data$-$modeling tool like