https://github.com/shaileshkale17/employee-management-software
Employee-Management-Software
https://github.com/shaileshkale17/employee-management-software
Last synced: 2 months ago
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Employee-Management-Software
- Host: GitHub
- URL: https://github.com/shaileshkale17/employee-management-software
- Owner: Shaileshkale17
- Created: 2025-03-21T14:22:58.000Z (2 months ago)
- Default Branch: master
- Last Pushed: 2025-03-21T15:54:23.000Z (2 months ago)
- Last Synced: 2025-03-21T16:28:28.686Z (2 months ago)
- Language: JavaScript
- Size: 4.71 MB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Employee Management Software
## Overview
Employee Management Software is a comprehensive solution designed to manage employees, attendance, shifts, leave requests, notifications, reports, and other core HR functionalities. The system ensures efficient management, real-time updates, and scalable architecture using modern web technologies.
## High-Level Flow of the System
### 1. User Interface (Frontend)
This is where users interact with the system.
**User Actions:**
- Logging in and authentication
- Managing employees and departments
- Tracking attendance and shift scheduling
- Requesting and reviewing reports
- Applying for and approving leaves
**Technology:** React.js (Web) / React Native (Mobile)
---
### 2. Authentication Service
Handles user authentication and role-based access control.
**Functionality:**
- Users authenticate using credentials (email/password)
- JWT-based authentication for secure session management
- Role-based access control for different user levels (Admin, Manager, Employee)
**Technology:** Node.js, JWT
---
### 3. Core Services
These are the key components responsible for business logic.
#### **Attendance Service**
- Employees can mark check-in/check-out.
- Attendance status (Present, Absent, Leave) is recorded.
- Sends notifications for missing or delayed check-ins.
- Stores data in MongoDB for reporting and analysis.
**Technology:** Node.js, MongoDB, WebSocket
#### **Shift Management Service**
- Assigns and updates shifts for employees.
- Stores shift schedules in MongoDB.
- Sends real-time notifications for shift changes.
**Technology:** Node.js, MongoDB, WebSocket
#### **Leave Management Service**
- Employees can apply for leave (Sick, Casual, Paid, Unpaid).
- Managers approve or reject leave requests.
- Leave status updates are stored and notified.
**Technology:** Node.js, MongoDB
#### **Notification Service**
- Sends real-time alerts for attendance, shifts, and leave updates.
- Supports WebSocket for live notifications and scheduled email/SMS alerts.
**Technology:** Node.js, WebSockets, Twilio
#### **Report Generation Service**
- Generates reports on attendance, shift schedules, leave records, and salary details.
- Data is fetched from MongoDB and formatted for viewing or export.
**Technology:** Node.js, MongoDB
#### **Testing Service**
- Ensures all services function correctly before deployment.
- Implements unit, integration, and end-to-end tests.
**Technology:** Jest, Mocha, Chai
---
### 4. Load Balancer
Distributes requests across multiple backend instances to improve scalability and fault tolerance.
**Technology:** Nginx, Node.js Cluster module
---
### 5. Queue System (Asynchronous Processing)
Handles background tasks such as report generation and notifications asynchronously.
**Technology:** RabbitMQ, Kafka
---
### 6. Database (MongoDB)
Stores all system data efficiently for fast retrieval and scalability.
**Technology:** MongoDB, MongoDB Atlas
---
### 7. Caching (Redis)
Speeds up frequently accessed data and session management.
**Technology:** Redis
---
### 8. Monitoring and Logging
Monitors system health, performance, and error tracking.
**Technology:** Prometheus, ELK Stack (Elasticsearch, Logstash, Kibana)
---
## System Diagram
```
+-------------------+
| User UI |
| (Web/Mobile App) |
+-------------------+
|
v
+---------------------------+
| Authentication Service |
| (JWT, User Role) |
+---------------------------+
|
v
+----------------------------------------+
| Load Balancer |
| (Distributes requests to servers) |
+----------------------------------------+
|
v
+---------------------------+ +---------------------------+
| Attendance Service | | Shift Management Service |
| (Check-in, Check-out) | | (Shift Assignments) |
+---------------------------+ +---------------------------+
| |
v v
+----------------+ +------------------------+
| Notification | | Report Generation |
| Service | | Service |
+----------------+ +------------------------+
| |
v v
+----------------+ +--------------------------+
| MongoDB (DB) | <------> | Queue System (RabbitMQ) |
| (Data Store) | | (Async Background Tasks) |
+----------------+ +--------------------------+
|
v
+------------+
| Redis |
| (Caching) |
+------------+
|
v
+--------------------+
| Monitoring & Logging|
| (Prometheus, ELK) |
+--------------------+
```
---
## Scalability Considerations
- **Horizontal Scaling:** Node.js servers can be scaled horizontally to handle more users.
- **MongoDB Scaling:** Supports sharding and replica sets for high availability.
- **Caching with Redis:** Reduces database load for frequently accessed queries.
- **Asynchronous Processing:** The queue system ensures background tasks don’t slow down user interactions.
This structure provides a robust, scalable, and efficient design for the Employee Management Software.