/Enterprise-Resource-Management-System

The Enterprise Resource Management System (ERP) is a web-based platform that facilitates the efficient management of resources, user roles, and tasks within an organization. Built using Node.js, Express, and PostgreSQL, the system supports role-based access control for various user roles, such as Admin, HR Manager, Product Manager, and Shop Manager

Primary LanguageHTML

Enterprise Resource Management System (ERP)

Acknowledgment

We would like to express our sincere gratitude to Mr. AKM Iqtidar Newaz [IqN], [Lecturer, Department of ECE, North South University] for their invaluable guidance, constructive feedback, and constant encouragement throughout the development of this project. Their expertise and support have been instrumental in our success.

Team Members

  • Md Tanvirul Islam Niloy - 221 2806 042
  • Anindita Das Mishi - 221 1364 642
  • Arpo Roy - 221 2656 042
  • Raiyan Masood Hriddho - 193 1117 042

Overview

The Enterprise Resource Management System (ERP) is a robust platform designed to streamline operations, manage resources efficiently, and enhance administrative control. It features a role-based access system, leveraging Node.js and Express with object-oriented principles to organize user roles and functionalities.

Features

  • User Management: Create, update, and delete user profiles for roles such as Admin, HR Manager, Product Manager, and Shop Manager.
  • Role-Based Access Control: Restrict or allow access to features based on user roles.
  • Product Management: Add, update, delete, and manage product information.
  • Task Management: Assign tasks and track progress to ensure efficient workflows.
  • Security: Secure access and data protection for sensitive information.

System Design

Class Diagram

Class Diagram The system uses a class-based structure for defining user roles and their interactions:

  • User (Abstract Class): Base class for all user types, with common attributes like ID, name, and salary.
  • Admin, HR Manager, Product Manager, Shop Manager: Derived classes with specific methods for respective roles.
  • Product and Task: Core entities managed by user roles using defined methods.

Architectural Overview

  • Backend: TypeScript, Node.js with the Express framework.
  • Database: PostgreSQL for data management.
  • Frontend: JavaScript and Tailwind CSS.

Software Design Pattern

  • Singleton Design Pattern: Manages database connections.
  • Factory Design Pattern: Dynamically extends employee roles.
  • Builder Design Pattern: Creates user profiles efficiently.
  • Observer Design Pattern: Allows employees to observe updates from the Shop Manager and ADMIN.
  • Strategy Design Pattern: Implements dynamic bag addition to the cart.
  • Composite Design Pattern: Extends the product class for modular functionality.

Installation

Prerequisites

  • Node.js
  • npm
  • PostgreSQL
  • JWT, ZOD

Setup

  1. Clone the repository: 
    git clone <repository-url>
  2. cd <project-directory>
  3. npm install.
  4. Set your .env
  5. cd <Backend>
  6. npm run dev --- for Backend
  7. for the frontend you can start with index.js.

Database

  1. The code for the Postgre SQL database is available in the Resources folder.