The employee attendance management system ER diagram shows the relationships of the system’s entities that build its database design. It is done by identifying the employee attendance management process entities, their properties, and the interactions between them.
The employee attendance 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 Attendance Management System ER Diagram: Details
The table shows the overall description of the ER Diagram for Employee Attendance Management System. It has a complete overview of the project’s information.
| Name: | Employee Attendance Management System ER Diagram |
| Abstract: | The employee attendance 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 Admin, Employers, and Employees. |
| Designer: | ITSourceCode.com |
What is Employee Attendance System?
The method used by a company to track employee time and attendance data is known as the attendance management system. The information is compared to the records of existing employees as soon as an employee enters the office and punches in or out on the machine.
Users and Employers may reduce the time and effort spent figuring out your employees’ work schedules by using an accurate attendance and time tracking system.
Companies can use the employee attendance approach to keep track of how many hours each employee puts in and the tasks they do during that time. They can then assess each person’s output and pinpoint their areas for development, boosting team productivity.
Employee Attendance Management System Features
- Employee Attendance Management – It is the main feature of the system wherein the designed ER diagram contains the basic details in attendance checking of the employees. The design will show the specific database that is needed in processing the checking of attendance.
- Employee Management – This feature plays a big role in the system because this gathers important information about the employee. This information was stored in the employee database and the data will be used during the attendance checking.
- Manage Attendance Information – Attendance information management was important for the system because it serves as the basis for the whole attendance report. This will also help in calculating the number of employee absences for the whole working days and hours.
What is an ER Diagram?
In DBMS, the ER Diagram of employee attendance 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 employee management system ER Diagram is used. It works best with DFD (Data Flow Diagram), which is responsible for data movement. Developing the database design for employee attendance management system would be much easier with the help of ER diagram.
Importance of ER Diagram
The importance of ER diagram for employee 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 employee attendance 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 employee attendance 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. Employee Attendance Management System ERD is also used as the foundation of the employee attendance system DFD (Dataflow Diagram).
ER Diagram for Employee Attendance System
The ER Diagram for Employee Attendance Management System shows the system entity relationships in each entity and their supposed functions in each relationship.
Based on the image above, the Entity-Relationship Diagram for Employee Attendance Management System tables consists of the following: employee, department, job title, leave, duty duration, and attendance reports.
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 Attendance Management System Database Design
The database design made for the Employee Attendance Management system was based on the activities included in attendance management. The system ERD must show how to secure and monitor the attendance of employees. The company admin can have access to the employees’ status during checking of attendance. And of course, the admin can also update the employee attendance.
The features included in the Management system’s ERD were the security and managing of the employee attendance records and status. These features were also listed and recorded in reports that served as the history of attendance checking done in the system.
Employee Attendance Management System ER Diagram Tables
These tables below provide the complete database table details such as Field Name, Descriptions, data 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
| Field | Description | Type | Length |
| employee_ID (PK) | Employee ID | Int | 11 |
| fname | Employee First Name | Varchar | 255 |
| lname | Employee Last Name | Varchar | 255 |
| gender | Employee Gender | Int | 11 |
| age | Employee Age | Int | 11 |
| contact_add | Contact Address | Int | 11 |
| emp_email | Employee Email | Varchar | 255 |
| emp_pass | Employee Password | Varchar | 255 |
Table Name: Job Title
| Field | Description | Type | Length |
| job_ID (PK) | Job ID | Int | 11 |
| job_title | Job Title | Varchar | 255 |
| dept_ID (FK) | Department ID | Int | 11 |
| employee_ID (FK) | Employee ID | Int | 11 |
Table Name: Department
| Field | Description | Type | Length |
| dept_ID (PK) | Department ID | Int | 11 |
| department_name | Department Name | Varchar | 30 |
Table Name: On-Duty
| Field | Description | Type | Length |
| duty_ID (PK) | On-Duty ID | Int | 11 |
| employee_ID (FK) | Employee ID | Int | 11 |
| job_ID (FK) | Job ID | Int | 11 |
| duration | On-Duty Duration | Int | 11 |
| date | Date | Date |
Table Name: Leave
| Field | Description | Type | Length |
| leave_ID (PK) | Leave ID | Int | 11 |
| emp_ID (FK) | Employee ID | Int | 11 |
| job_ID (FK) | Job ID | Int | 11 |
| date | Date of Leave | Date |
Table Name: Attendance Reports
| Field | Description | Type | Length |
| report_ID (PK) | Report ID | Int | 11 |
| employee_ID (FK) | Employee ID | Int | 11 |
| job_ID (FK) | Job ID | Int | 11 |
| duty_ID (FK) | Duty ID | Int | 11 |
| total_labor | Total Labor | Int | 11 |
| salary | Salary | Int | 11 |
| date | Date | Date |
The tables given will be the basis for developers on how would they do the employee attendance 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 Attendance Management System ER Diagram [PDF]
The ER Diagram for Employee Attendance 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 Employee Attendance 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 employee attendance 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 employee attendance 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.
Conclusion:
ER (entity-relationship) diagram is only one of the diagrams used to design and develop the Employee Attendance 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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