Part One :

Consider a database of King Abdulaziz Airport. For this mini-world example, define four mini-world entities and four mini-world relationships.

Part two :

Discuss the advantage and the drawback of relational and object-oriented models.

Part three :

The French Bakery is a new business project, the owner of the bakery needs a database to keep the essential data and transactions regarding his business. The following requirements of the bakery have been collected:

There are different departments in the bakery business, each department has a name, department number, the number of employees, and manager.

The database will keep the start date and the end date for each manager.

The bakery needs to keep Employees name, ID number, Phone number, address, sex, position, and the salary.

Each employee work for a specific department.

Each employee has a supervisor.

Some employees have more than one position.

To keep contact with customers and provide customer services and marketing, the bakery requires customers name, address, Cnumber (which is unique for each customer), email, and the phone number.

The bakery sells many products, each product has a name and a price, and the calories amount.

The manager will be responsible of products.

Also, the Quality Department will control the products.

Based on the above requirements, draw each entity with the relative attributes.

Part Four :

For the previous question (The French project), complete and build the ER model.