ER Diagram for Employee Management System

The employee management system ER diagram shows the relationships of the system’s entities that build its database design. ER diagram describes the logical structure of the system’s database or data storage. It is done by identifying the employee management process entities, their properties, and the interactions between them.

The employee management system database design is sketched out using ER (entity-relationship) diagram. This sketch becomes the actual basis of the system’s data storage that will serve as data destination and source.

Employee Management System ERD Details

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

Name:Employee Management System ER Diagram and Database Design
Abstract:Employee 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 (Entity-Relationship Diagram/ERD)
Users:Company or Business Owners and Employees.
Tools Used:Diagraming tools that provide ER diagram symbols.
Employee Management System ER Diagram – Details

What is Employee Management System?

Employers can easily control labor costs and increase productivity by using an employee management system. These systems give managers information about their employees and help them plan and schedule work hours better.

It is an application-based system developed with two applications: one for employers to handle employee information and another for employees to track their attendance. The second application is for companies to keep staff data. Every organization, public or private, makes use of an employee management system.

Employee Management System Features:

  • Employee Management: This feature plays a big role in the system because this gathers important information about the employees. This information was used to track their job performance and other important matters regarding the system. The system will also check the attendance of the employees.
  • Manage Salaries and Bonuses: The salary and bonuses management will be done by the admin to track the wages and expenses of the establishment. This process will help them in updating the status of the employees in terms of giving the salaries and other matters regarding their employees.
  • Manage Job Departments and Status: Its feature will manage and monitor the job status of every employee and then will calculate their salaries for the range of their labor or per month. This will also record all the expenses of the establishment and then save them to the database for future inventory purposes.
  • Manage and Monitor Transaction Records: This is the process where the admin should keep track of every transaction made by their employees with the product or services offered to their customers. The system will also monitor their attendance and Leave to determine the range of their work and calculate their exact salary.

Benefits of using an employee management system ERD

The following benefits come from developing your staff management system utilizing the diagramming features offered:

  • You will have quicker access to all the data because it will be saved in one location, whether it be about personnel, projects, or general business information.
  • You’ll save time and stay organized if you have all the information in one location, which will make it simpler to concentrate on jobs that are more urgent.
  • No matter where you are, you can view your template and collaborate with your team members online in real time.
  • Create an employee management system ERD template that works for you and your department using the ERD model stencils.

ER Diagram For Employee Management System

Sample ER diagram for employee management system shows the system entity relationships in each entity and their supposed functions in each relationship.

Employee Management System ER Diagram (2)
ER Diagram For Employee Management System (Database Design)

This diagram presents the Entities’ Relational Model for Employee Management System. It is used to enlighten you on how the back end of the database of the project works. The tables are made to meet the required specification of the system and provide much more specific details of each entity within the system.

Based on the image above, the ER diagram for employee leave management system presents the database design of the project. The tables are made to meet the required specification of the system and provide much more specific details of each entity within the system.

Employee Management System Database Design

The employee database design was made based on managing employees’ information requirements. Its database design can store and secure employees’ information. Admin can have access to the employees’ status and information to see their performances and salaries. They can handle the data needed in managing employees and their job departments.

The features included in the system ER diagram were the security and monitoring of the employees’ jobs and the range of service records, job information, and status. These features were also listed and recorded in reports that served as the history of transactions done in the system.

Employee Management System ER Diagram Tables

These tables below provide the complete database design details such as Field Namestudent management system projectdata types, and character lengths for Employee System.

Table Name: Employee

emp_ID (PK)Employee IDInt11
fnameEmployee First NameVarchar255
lnameEmployee Last NameVarchar255
genderEmployee GenderInt11
ageEmployee AgeInt11
contact_addContact AddressInt11
emp_emailEmployee EmailVarchar255
emp_passEmployee PasswordVarchar255
Table Name: Employee

Table Name: Users

admin_ID (PK)Admin IDInt11
fnameInstructor First NameVarchar255
lnameInstructor Last NameVarchar255
genderInstructor GenderInt11
ageInstructor AgeInt11
contact_addContact AddressInt11
admin_emailAdmin EmailVarchar255
admin_passAdmin PasswordVarchar255
Table Name: Users

Table Name: Job Department

job_ID (PK)Job IDInt11
job_deptJob DepartmentVarchar30
nameJob NameVarchar30
descriptionJob DescriptionVarchar30
salary_rangeSalary RangeVarchar30
Table Name: Job Department

Table Name: Salary or Bonus

salary_ID (PK)Salary IDInt11
job_ID (FK)Job IDInt11
annualAnnual ExpenseDate
Table Name: Salary or Bonus

Table Name: Qualification

qual_ID (PK)Qualification IDInt11
emp_ID (FK)Employee IDInt11
positionPosition of ApplicationVarchar30
date_inDate InDate
Table Name: Qualification

Table Name: Payroll

payroll_ID (PK)Payroll IDInt11
emp_ID (FK)Employee IDInt11
job_ID (FK)Job IDInt11
salary_ID (FK)Salary IDInt11
leave_ID (FK)Leave IDInt11
dateDate of Payroll ReportDate
total amountTotal AmountInt11
Table Name: Payroll

The tables given will be the basis for developers on how would they do the employee management system database design. It has the complete description of the database and they will put this into the program or data storage the same as the names given to each of the tables. They will create a database with the attributes given as well as the value of each attribute.

Employee Management System ER Diagram [PDF]

The ER Diagram for Employee Management System in DBMS 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 directly or modify its content depending on your project’s requirements.

How to build ER Diagram with Cardinality Ratio

Time needed: 5 minutes

Steps in building the ER Diagram for Employee Management System with Cardinality Ratio.

  • Step 1: Familiarize the ER Diagram (Entity Relationship Diagram) Symbols and Cardinality

    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 familiarized before you build the ER Diagram.

    ER Diagram Symbols:
    Fields: 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 is a technique to categorize data qualities. 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.
    – Primary Key: identifies a single entity instance which means a unique attribute or set of attributes.
    – Foreign Key: is produced when data attributes have one-many relationships with other entities.

    ER Diagram Cardinalities:
    The styling of a line and its termination demonstrates cardinality and ordinality.
    The greatest number of times an instance of one thing can be related to instances of another entity is referred to as cardinality.
    While Ordinality refers to the fewest number of times a single entity instance can be linked to another.

  • Step 2: Determine the targeted users

    After the symbol familiarization, you’ll need to determine your targeted users. Your targeted users will be the ones to use your project.

    If your project is Employee Management System then your users would be the company admin and employees. You may ask the users about the common activities that they do when doing tasks in employee management. This information will help you in proceeding with the next step.

  • Step 3: Analyze the entities and their included attributes

    Analyzation is very important in creating ER diagram. It will help you understand the work of the diagram and avoid unwanted errors.

    The gathered information from the users is very useful in creating the diagram. You will evaluate the data and pick the useful ones.

    From this, you will see the possible data that will enter and exit the system. But only include the useful data related to employee management. Then you’re ready for the next step.

  • Step 4: Plot the Entity Relationship Diagram

    To plot the ERD you will need the entities, their attributes, and relationships. You will base the data structure from the evaluated information to have the exact Entity Relationship Diagram.

    – To design the ER Diagram, you will list first all of the entities related to the Employee Management System.
    – Then you will place the attributes included under them. This will help you create the ER Diagram Fields.
    – Do not forget the keys of the attributes. The keys will generate the potential relationships between entities.
    – Finally, you have your ER Diagram Completed.


ER (entity-relationship) diagram is only one of the diagrams used to design and develop the Employee Management 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. To learn more about the ER Diagrams and more, check out the related and recommended articles below.

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