The car rental system ER diagram illustrates database entity relationships. The ER diagram shows the database’s logical structure. Recognize process entities, their attributes, and their interactions.
Besides, entity-relationship diagrams are used to create the automobile rental database. This sketch becomes the system’s data destination and source.
Furthermore, read or visit the other related diagrams for Car Rental System.
- Car Rental System DFD Levels 0, 1, and 2
- Activity Diagram for Car Rental System
- Component Diagram for Car Rental System | UML
- Deployment Diagram for Car Rental System | UML
- Online Car Rental System UML Diagrams
- Car Rental System Sequence Diagram | UML
- Online Car Rental System Class Diagram | UML
ER Diagram for Car Rental System: Details
The table shows the overall description of the ER Diagram for Car Rental Management System. It has a complete overview of the project’s information.
| Name: | Car Rental Management System ER Diagram |
| Abstract: | The car rental management system ER diagram depicts the relationship between various entities. It can be thought of as a blueprint for your system (project) structure. |
| Diagram: | ER Diagram is also known as Entity Relationship Diagram |
| Tools Used: | Diagraming tools that provide ER diagram symbols. |
| Users: | Rental Owner, System Admin, and Clients. |
| Designer: | ITSourceCode.com |
What is Car Rental Management System?
Short-term car rentals are common. non-car owners, out-of-town travelers. car owners who require repairs or replacements.
Customers can rent cars online. This technology makes the company’s services public online and allows them to monitor its performance.
Online Car Rental System Features
- This system features car rental management. ER diagrams provide system specifics. It contained client transactions and rental buses.
- Customer Management: This feature captures crucial customer data. This data was used to track transactions and system issues.
- A system is needed to manage bus information. because it’s how customers rent from the system. Customers were updated on this information.
- Its features include customer rentals. The transaction date This saves and updates the customer’s requested accommodations.
What is an ER Diagram?
ER Diagrams are used to construct and troubleshoot relational databases. It works better with DFD, which moves data. ER diagrams make designing the car rental database easier.
Importance of ER Diagram
ER diagrams assist in representing a vehicle rental management system’s database. It’s the project’s database foundation. Entity-relationship diagrams (ERDs) help define data types. Their qualities and characteristics must be stored.
ER Diagram for Online Car Rental System
ER Diagram of Car Rental System shows the system entity relationships in each entity and their supposed functions in each relationship.
The Entity-Relationship (ER) Diagram for vehicle rental system tables shows admin, customer, ticket, bookings, transactions, and reports.
The system-required tables provide additional specific information about each entity.
Car Rental Management System Database Design
This database was designed to manage rental needs. Requests for car rental can be encoded. The system admin can view consumer info. You can update rental and customer transaction data.
Car Rental Management System ER Diagram Tables
These tables include field names, descriptions, data types, and character lengths. Each table shows the data storage traits.
Field column lists database characteristics. The Description column explains each attribute. Their data type is their length, while length is their character length.
Table Name: Customer
| Field | Description | Type | Length |
| stud_ID (PK) | Customer ID | Int | 11 |
| fname | Customer First Name | Varchar | 255 |
| lname | Customer Last Name | Varchar | 255 |
| gender | Customer Gender | Int | 11 |
| age | Customer Age | Int | 11 |
| contact_add | Contact Address | Int | 11 |
| cust_email | Customer Email | Varchar | 255 |
| cust_pass | Customer Password | Varchar | 255 |
Table Name: Admin
| Field | Description | Type | Length |
| admin_ID (PK) | Admin ID | Int | 11 |
| fname | Admin First Name | Varchar | 255 |
| lname | Admin Last Name | Varchar | 255 |
| gender | Admin Gender | Int | 11 |
| age | Admin Age | Int | 11 |
| contact_add | Contact Address | Int | 11 |
| admin_email | Admin Email | Varchar | 255 |
| admin_pass | Admin Password | Varchar | 255 |
Table Name: Cars
| Field | Description | Type | Length |
| car_ID (PK) | Car ID | Int | 11 |
| car_number | Car Number | Int | 11 |
| car _model | Car Model | Varchar | 30 |
| car_status | Car Status | Varchar | 30 |
| rent_prize | Prize Rent | Varchar | 30 |
| driver_ID (FK) | Driver ID | Int | 11 |
Table Name: Rentals
| Field | Description | Type | Length |
| rental_ID (PK) | Rental ID | Int | 11 |
| rental_num | Rental Number | Int | 11 |
| date_rent | Rental Date | Date | |
| time_depart | Destination | Time | |
| time_arrive | Time of Arrival | Time | |
| destination | Date of Accommodation | Varchar | 30 |
| date_return | Returning Date | Date | |
| payment | Payment | Varchar | 30 |
Table Name: Transaction
| Field | Description | Type | Length |
| trans_ID (PK) | Transaction ID | Int | 11 |
| trans_name | Transaction Name | Varchar | 30 |
| rental_ID (FK) | Rental ID | Int | 11 |
| car_ID (FK) | Car ID | Int | 11 |
| cust_ID (FK) | Customer ID | Int | 11 |
| admin_ID (FK) | Admin ID | Int | 11 |
| trans_date | Date of Transaction | Date |
Table Name: Driver
| Field | Description | Type | Length |
| driver_ID (PK) | Driver ID | Int | 11 |
| driver_name | Driver Type | Varchar | 30 |
| commission | Commission | Varchar | 30 |
Table Name: Reports
| Field | Description | Type | Length |
| report_ID (PK) | Report ID | Int | 11 |
| trans_ID (FK) | Transaction ID | Int | 11 |
| rental_ID (FK) | Rental ID | Int | 11 |
| report_date | Report Date | Date |
Car Rental System ER Diagram [PDF]
The Car Rental Management System ER Diagram in DBMS Pdf explains the project database. This can be used for your capstone. You can use it directly or adapt it for your purpose.
How to create an Entity-Relationship (ER) Diagram
Time needed: 5 minutes
Here are the steps on how to build ER Diagram for Car Rental System with Cardinality Ratio.
- Step 1: Become acquainted with the ER Diagram (Entity Relationship Diagram). Symbols and Cardinality
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
After finalizing the entities, think about the qualities you’ll need to characterize each entity. The details of the various entities outlined in a conceptual ER diagram are supplied as attributes. All of these are examples of attributes. Multivalued attributes can be assigned to several values.
- Step 4: Describe the relationships (cardinality) between entities and attributes
To plot relationships between the ERD, you will need the entities, their attributes, and relationships. You will base the data structure on the evaluated information to have the exact entity relationship diagram.
Conclusion:
The ER (entity-relationship) diagram is only one of the diagrams used to design and develop the Car Rental System. Each of the diagrams you design and create will help you present 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. To learn more about the ER Diagrams and more, check out the related and recommended articles below.
Inquiries
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