Entities and Attributes of the Online Food Ordering and Delivery
Entities serve as the building blocks of our database, representing the fundamental objects or concepts that need to be stored and managed. Attributes define the characteristics or properties of each entity. Let’s explore each entity and attribute in detail
Customer: The individual or organization placing orders.
- CustomerID (Primary Key): Unique identifier for each customer.
- Name: Name of the customer.
- Address: Physical address associated with the customer.
- ContactNumber: Contact number of the customer.
- Email: Email address of the customer.
Restaurant: offering food for delivery.
- RestaurantID (Primary Key): Unique identifier for each restaurant.
- Name: Name of the restaurant.
- Address: Location address of the restaurant.
- CuisineType: Type of cuisine offered by the restaurant.
- ContactNumber: Contact number of the restaurant.
Menu Item: Individual food items available for ordering.
- ItemID (Primary Key): Unique identifier for each menu item.
- Name: Name of the menu item.
- Description: Description of the menu item.
- Price: Price of the menu item.
- RestaurantID (Foreign Key): Reference to the restaurant offering the menu item.
Order: Placed by customers for food delivery.
- OrderID (Primary Key): Unique identifier for each order.
- CustomerID (Foreign Key): Reference to the customer placing the order.
- OrderDate: Date and time when the order was placed.
- TotalAmount: Total amount of the order.
- DeliveryAddress: Address where the order should be delivered.
Delivery Personnel: Individuals responsible for delivering orders.
- DeliveryPersonID (Primary Key): Unique identifier for each delivery personnel.
- Name: Name of the delivery personnel.
- VehicleID (Foreign Key): Reference to the vehicle assigned to the delivery personnel.
- ContactNumber: Contact number of the delivery personnel.
Vehicle: Mode of transportation used for deliveries.
- VehicleID (Primary Key): Unique identifier for each vehicle.
- Type: Type of vehicle used for delivery (e.g., bike, car).
- RegistrationNumber: Registration number of the vehicle.
- AvailabilityStatus: Availability status of the vehicle.
How to Design ER Diagrams for Online Food Ordering and Delivery
Designing an ER (Entity-Relationship) diagram for an online food ordering and delivery system is crucial for ensuring efficient operations, effective resource management, and seamless customer experiences.
By carefully identifying entities, defining their attributes, and establishing relationships between them, we can create a robust database model tailored to the specific needs of this industry. Let’s delve into the process of designing an ER diagram for an online food ordering and delivery system.