ER Diagram for Restaurant Management System

The model of the simple ER diagram for restaurant management system is shown in this ER (Entity Relationship) Diagram. The Restaurant Management System’s entity-relationship diagram shows all of the database tables. The connections between employees, sales, restaurants, orders, etc.

Moving on, it uses structured data and relationships between structured data groups to define how the Restaurant Management System works.

The Restaurant Management System is made up of six main parts: customer, crew, order details, payment, transaction report, menu, food info, and delivery.

Also, read the suggested articles below to learn more about ER Diagrams.

Restaurant Management System ER Diagram: Details

The table shows the name and details of the Restaurant Management System ER Diagram. It has a complete description of the project’s information.

Name:Restaurant Management System ER Diagram
Abstract:The Restaurant Management System ER Diagram shows how different things relate to each other. 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
Users:School Librarian, Student (Book Borrowers), and School Admin
Tools Used:Diagraming tools that provide ER diagram symbols.
Restaurant Management System ER DiagramDetails

What is a Restaurant Management System?

Restaurant management software aims to simplify some of the most common management duties in the restaurant industry. For example, it can combine information from several online booking channels so you can see all reservations and avoid double bookings.

What are the five major components of ER diagram?

Symbols and Notations for an Entity Relationship Diagram (ERD). An ER Diagram is made up of three main parts: an entity, an attribute, and a relationship. There are more parts that build off of the main parts. They are called weak entities, multi-valued attributes, derived attributes, weak relationships, and recursive relationships.

Why is ER diagram used?

ER diagrams exhibit relational database technology, logic, and business rules (in a logical data model or in a physical data model).

Restaurant Management System ER Diagram

The ER Diagram of the Restaurant Management System shows the system entity and the supposed functions in each relationship. It is the supposed database design of the project. This conveys the data that would be present in the restaurant system, its characteristics, and its connection with other data (entity).

UML ER Diagram for Restaurant Management System
ER Diagram for Restaurant Management System

ER Diagram Restaurant Management System with Tables

These tables below provide the complete database table details such as Field NameDescriptionsdata types, and character lengths.

Table Name: Customer

cust_ID (PK)Customer IDInt11
nameCustomer NameVarchar255
contactCustomer Contact Int11
addressCustomer AddressText
usernameCustomer UsernameVarchar255
passwordCustomer PasswordVarchar255
Table Name: Customer

Table Name: Crew

crew_ID (PK)Crew IDInt11
nameCrew NameVarchar255
contactCrew Contact Int11
addressCustomer AddressText
usernameCrew UsernameVarchar255
passwordCrew PasswordVarchar255
Table Name: Crew

Table Name: Order Details

order_ID (PK)User IDInt11
crew_ID (FK)Crew IDInt11
cust_ID (FK)Customer IDInt11
food_ID (FK)Food IDInt11
dateOrder DateDate11
statusOrder StatusVarchar255
Table Name: Order Details

Table Name: Payment

pay_(PK)Payment IDInt11
cust_ID (FK)Customer IDInt11
order_ID (FK)Order IDInt11
delivery_ID (FK)Delivery IDInt11
datePayment DateDate
Table Name: Payment

Table Name: Menu

menu_ID(PK)Menu IDInt11
food_ID (FK)Food IDInt11
detailsMenu DetailsVarchar255
Table Name: Menu

Table Name: Food

food_ID (PK)Food IDInt11
nameFood NameVarchar30
statusFood StatusInt11
priceFood PriceInt11
Table Name: Food

Table Name: Delivery

delivery_ID (PK)Delivery IDInt11
order_ID (FK)Order IDInt11
dateDelivery DateDate
Table Name: Delivery

Table Name: Transaction

trans_ID (PK)Transaction IDInt11
trans_dateTransaction DateDate
cust_IDCustomer IDInt11
crew_ID (FK)Crew IDInt11
order_ID (FK)Order ID
report_dateIntD11ate of ReportDate
Table Name: Transaction

ER Diagram for Restaurant Management System PDF

The ER Diagram for Restaurant Management System PDF provides 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. 

Click to Download the PDF File below.

How to create ER Diagram in Restaurant Management System

Time needed: 5 minutes

Here are the steps on how to create Restaurant Management 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.


You need to know the diagrams used to design and develop the restaurant management system. That is to help you create a fully functional system with the use of the ER Diagram. Creating it will help you perceive the back end of the software. This will hold all the data that’ll enter and exit the system.


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