ER Diagram for Online Food Ordering System

This article will explain, step by step, how to make the entity relationship diagram (ERD) for the Online Food Ordering System ER Diagram.

The Online Food Ordering System capstone project is a web and mobile app that lets an organization post its menus and foods and take orders from customers. This is kind of like an e-commerce platform, but it is made for ordering food.

Check out the related and suggested articles below to learn more about ER Diagrams and other things.

Entity relationship ER diagram for online food ordering system

The table shows the overall description of the Simple ER diagram for online food ordering system.

Name:ER Diagram for Online Food Ordering System
Abstract:The ER diagram for the online food ordering system shows how the different things work together. You can think of it as a plan for how your system (or project) will be put together.
Diagram:ER Diagram is also known as Entity Relationship Diagram
Tools Used:Diagraming tools that provide ER diagram symbols.
Users:Train Companies, Passengers, and Crews.
Online Food Ordering System ER Diagram: Details

What is an Online Food Ordering System?

In an online food ordering system, a consumer searches for a favorite restaurant, which is usually categorized by cuisine, and then selects from available items as well as delivery or pick-up options.

Payment can be made in a variety of ways, including credit card or cash, with the restaurant remitting a portion of the proceeds to the online food delivery service.

The system includes a website or app that allows customers to look at the menu and order food, as well as an admin interface that lets restaurants get and send orders to customers, so they can get and send them food.

Online Food Ordering System Features

  • Food Ordering Information: Food Ordering Information secures the data needed to display the establishment’s products. They were displayed to market and promote their products.
  • Customer Order Details: As a major step in the Food Ordering System, it determines the included data when a customer orders or transacts. Customer order details data examples include name, address, and phone number. This process takes consumer meal orders, quantities, and payment information.
  • Transaction Reports Management: Food Supply Management oversees all supply-related activities. To track all production supplies, enter and exit data must be captured. The Food Ordering System ER Diagram will store this data.
  • Transaction and Reports Management: This process is considered one of the major processes in the project because it saves the overall transaction within a period of time. These reports will then be helped by the ER Diagram designed for the Food Ordering System.

What is an ER Diagram?

With the ER model, real-life situations are shown as entities. In the ER diagram, the properties of these entities are shown as attributes, and their connections are shown as relationships.

Online Food Ordering System ER Diagram

The ERD, or ER Diagram, for Online Food Ordering System shows the system entity relationships in each entity and their supposed functions in each relationship. Now here’s the sample Online Food Ordering System Database Design.

ER Diagram for Online Food Ordering System

ER Diagram for Online Food Ordering System

Online Food Ordering System Database Design

This online food ordering system database design was made based on managing food ordering requirements. The system can encode customer and user information. Only the admin can access the status and information of the transactions and handle data in managing orders as well as customer reservation records.

The features included in the system ER diagram were the security and monitoring of the food ordering management and status and customers’ transactions. These features were also written down in reports, which served as a record of all the transactions that had happened in the system. 

Food Ordering System ER Diagram Tables

These tables below provide the complete database table details such as field namesdescriptionsdata types, and character lengths. These details can help the developers and programmers determine the type of data that should be handled.

Table Name: Customer

cust_ID (PK)Customer IDInt11
nameCustomer NameVarchar255
contact_numContact NumberVarchar11
Table Name: Customer

Table Name: Food Product

food_ID (PK)Food IDInt11
nameFood NameInt11
Table Name: Food Product

Table Name: Food Supply

suppy_ID (PK)Supply IDInt11
nameName of SupplierVarchar255
quantitySupply QuantityInt11
dateSupply DateDate
amountSupply AmountVarchar 11
Table Name: Food Supply

Table Name: Order Details

order_ID (PK)Order IDInt11
cust_ID (FK)Customer IDInt 11
food_ID (FK)Food IDInt11
quantityQuantity of OrderInt11
delivery_ID (FK)Order DeliveryInt11
dateOrder DateDate
Table Name: Order Details

Table Name: Delivery

delivery_ID (PK)Delivery IDInt11
cust_ID (FK)Customer IDInt 11
food_ID (FK)Food IDInt11
quantityOrder QuantityInt11
paymentOrder PaymentVarchar11
dateDelivery DateDate
Table Name: Delivery

Table Name: Transaction Reports

order_ID (PK)Order IDInt11
cust_ID (FK)Customer IDInt11
order_ID (FK)Order IDInt11
food_ID (FK)Food IDInt11
supply_ID (FK)Supply IDInt11
delivery_ID (FK)Delivery IDInt 11
dateReport DateDate
Table Name: Transaction Reports

ER Diagram for Online Food Ordering System PDF

The ER Diagram for Online Food Ordering System PDF provides the information explaining the concepts of the project database. You may apply this information to your capstone project. You can also use it as is or change its content to fit the needs of your project. 

How to create an Online Food Ordering System ER Diagram?

Time needed: 5 minutes.

Here are the steps on how to create Online Food Ordering System ER Diagram

  • Step 1: Become acquainted with the ER Diagram (Entity Relationship Diagram)

    The Entity Relationship Diagram shows the structure of data types in a project. It uses symbols to clarify its parts and relationships. Their symbols and applications must be familiar before you build the ER Diagram.

    ER Diagram Symbols:
    Fields are the parts of a table that define the entity’s characteristics. In the database that the ERD models, attributes are commonly thought of as rows. 

    Keys are a technique to categorize data quality. It is used to organize ER diagrams and assist users in modeling their databases to ensure that they are efficient. This is also used to connect different tables in a database. 

    A primary key identifies a single entity instance, which means a unique attribute or set of attributes. 
    A foreign key is produced when data attributes have one too many relationships with other entities.

  • Step 2: Complete the entities that will be included.

    Begin designing your ER Diagram by finalizing your railway reservation system’s entities. These are rectangles. You must leave room in future phases so they can be incorporated.

  • Step 3: Add the attributes of each entity

    Upon finalizing the entities, analyze their attributes. As characteristics, ER diagram entities are described. All these are characteristics. Multivalued characteristics have several values.

  • Step 4: Describe the relationships (cardinality) between entities and attributes

    Entities, characteristics, and relationships are needed to draw ERD relationships. The data structure and entity relationship diagram are based on evaluated information.


ER (entity-relationship) diagram is only one of the diagrams used to design and develop the Online Food Ordering System. Each of the diagrams you design and create will help you in presenting your ideas and impart your abilities.

Creating the ER diagram will help you perceive the back end of the software which will hold all the data that’ll enter and exit the system.


If you have inquiries or suggestions about the Online Food Ordering System ER Diagram, just leave us your comments below. We would be glad to know to concerns and suggestions and be part of your learning.

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