Payroll Management System ER Diagram | Entity Relationship Diagram

Payroll Management System ER Diagram

The payroll 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 payroll management process entities, their properties, and the interactions between them.

The payroll 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.

ER Diagram for Payroll Management System: Details

The table shows the overall description of the ER Diagram for Payroll Management Management System. It has a complete overview of the project’s information.

Name:Payroll Management Management System ER Diagram
Abstract:The payroll 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:Company or Business Owners and Employees.
Payroll Management System ER Diagram: Details

What is Payroll Management System?

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The payroll management system is software that allows you to manage all of the employees’ financial data quickly and easily. UML deployment diagram for payroll system helps in describing the processes in managing all employees’ financial information. This information is processed and passes through the links in the design deployment diagram.

Everything connected to paying employees and filing employment taxes is handled by payroll systems. This system is used to measure hours worked, compute earnings, withhold taxes and other deductions, print and deliver checks, and pay employment taxes to the government. The mentioned links in processes were the basis of the UML deployment diagram.

Payroll Management System Features

  • Payroll Management – Payroll Management is the main feature of this system wherein ER diagram contains the basic details needed for creating payrolls. This basic information was composed of employee job info and status. This will also monitor or check about the leave and bonuses that the employee deserves aside from the salary.
  • 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.
  • 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 payroll in terms of giving the salaries and other matters regarding their employees.
  • Manage Job Status and Calculate Expenses – 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.

What is an ER Diagram?

In DBMS, the ER Diagram of payroll management system is also known as the system’s database design. It is the graphical depiction of relationships between all the entities involved in the system. Its major components are Entities, Attributes, and Relationships.

To build and troubleshoot relational databases, the payroll system ER Diagram is used. It works best with DFD (Data Flow Diagram), which is responsible for data movement. Developing the database design for payroll management system would be much easier with the help of ER diagram.

Importance of ER Diagram

The importance of ER diagram for payroll management system is to help in modeling its data storage or database. It is the basis of the project’s database foundation for construction. The payroll management system entity-relationship diagram (ERD) also aids in defining the data types to be stored such as their attributes and characteristics.

All other real-world projects are presented with ER Diagrams (database designs). To display the details and attributes of a data store, the er diagram for payroll management system is used in conjunction with its data flow diagram. It visualizes how data is connected generically.

ERD (Entity-relationship diagram) is utilized in software engineering during the planning phase of software development. It aids in the identification of various system constituents and their interrelationships. Payroll Management System ERD is also used as the foundation of the payroll system DFD (Dataflow Diagram).

ER Diagram for Payroll Management System

ER Diagram of Payroll Management System shows the system entity relationships in each entity and their supposed functions in each relationship.

Sample ER Diagram for Payroll Management System Project

Payroll Management System ER Diagram
Payroll Management System ER Diagram

Based on the image above, the Entity-Relationship Diagram for Payroll Management System tables includes employee, payroll, job department, salary and Bonuses, and leave table.

The tables are made to meet the required specification of the system and provide much more specific details of each entity within the system.

Payroll Management System Database Design

This Payroll management system database design was made based on managing payroll requirements. The system can encode employees’ information. Payroll admin can have access to the employees’ status and information in terms of working performances and salaries as well as monitoring the ranges of labor made by the employees.

The features included in the system ER diagram were the security and monitoring of the employees’ work and leave 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.

Payroll Management System ER Diagram Tables

These tables below provide the complete database table details such as Field NameDescriptionsdata types, and character lengths. Each of these tables represents the characteristics and the attributes of data storage.

The field column presents the names of each database’s attributes, the description column gives the complete thought of each attribute, the type column is their data type and the length is for their character lengths.

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: Leave

leave_ID (PK)Leave IDInt11
emp_ID (FK)Employee IDInt11
statusLeave StatusVarchar30
reasonReason for LeaveText
Table Name: Leave

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 payroll 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.

Payroll Management System ER Diagram [PDF]

The ER Diagram for Payroll 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 create an Entity-Relationship (ER) Diagram

Time needed: 5 minutes.

Steps in building the ER Diagram for Payroll 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:
    Field – 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 too 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: Finalize the entities included

    Start designing your ER Diagram by finalizing the entities that must be included in your payroll management system. This entity is represented by a rectangle, and you’ll want to leave plenty of room for them in future phases so you may add them to your design.

    An entity set is a group of similar entities with shared properties. A table or a table’s attribute is an entity in a database management system. As a result, by depicting relationships between tables and their characteristics, an ER diagram displays the whole logical structure of a database.

  • 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. Characteristics of an entity, a many-to-many relationship, or a one-to-one relationship are all examples of attributes. Multivalued attributes can be assigned to several values.

    The entity’s attributes were represented by ovals and can be seen in the tables of the payroll management system er diagram. These attributes can be a primary key or a foreign key in the database design of the project. Yoy ER diagram design could also be converted to the database of the system by declaring your right entities and their attributes.

  • 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 from the evaluated information to have the exact Entity Relationship Diagram.

    A relationship is an association that describes how two entities interact. At the connector’s endpoints, the cardinality is indicated by a crow’s foot. One-to-one, one-to-many, and many-to-many are the three most common cardinal relationships. It’s the maximum number of times an instance of one entity can be linked to instances of another entity.


ER (entity-relationship) diagram is only one of the diagrams used to design and develop the Payroll 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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