Software Requirements Specification (SRS) for GST Input Tax Credit Calculator
Rashmi Sukhdev
Software Requirements Specification (SRS) for GST Input Tax Credit Calculator
Introduction
Purpose:
The purpose of this document is to define the requirements for the development of a GST Input Tax Credit Calculator. This web-based application aims to assist businesses in calculating the eligible input tax credit under the Goods and Services Tax (GST) system.
Scope:
The GST Input Tax Credit Calculator will provide businesses with a user-friendly interface to input GST details and calculate the input tax credit. The application will adhere to GST regulations and guidelines.
System Overview
System Description:
The system will be a client-server application. Users will access the GST Input Tax Credit Calculator through a web browser. The server will handle the logic for input tax credit calculations.
System Architecture:
The application will follow a three-tier architecture: presentation layer (client-side browser), application layer (server-side processing), and data layer (storage and retrieval of data).
Functional Requirements
Use Cases:
Calculate Input Tax Credit:
Users can input GST details, including GST paid on purchases and GST received on sales.
The system will calculate and display the eligible input tax credit based on the provided information.
Functional Requirements:
Input:
The system shall allow users to enter the following details:
GST Amount Paid on Purchases (in INR)
GST Amount Received on Sales (in INR)
Calculation:
The system shall calculate the eligible input tax credit based on the provided GST amounts.
Output:
The system shall display the calculated input tax credit amount to the user.
External Interface Requirements
User Interfaces:
The user interface shall consist of input fields for GST amounts paid and received, along with a “Calculate” button.
The calculated input tax credit amount shall be displayed prominently.
Hardware Interfaces:
The system should be compatible with standard computing hardware.
Software Interfaces:
The application will be developed using HTML, CSS, and JavaScript for the frontend.
The backend can be implemented using a server-side framework (e.g., Node.js, Django) with a database for data storage.
Communication Interfaces:
The application will communicate with the server for input tax credit calculations.
Performance Requirements
Response Time:
The system should provide a response time of under 3 seconds for a typical user input.
Throughput:
The application should handle at least 50 simultaneous users.
System Constraints
Regulatory Requirements:
The application should comply with relevant GST regulations and guidelines.
Hardware Limitations:
The system should be compatible with devices supporting standard web browsers.
Security Requirements
Authentication:
User authentication may be implemented to ensure data security.
Data Protection:
User data, if stored, should be securely protected.
Quality Attributes
Reliability:
The application should provide accurate input tax credit calculations based on the entered GST details.
Maintainability:
The code should be well-documented for ease of maintenance.
Usability:
The user interface should be intuitive, requiring minimal guidance.
Testing Requirements
Test Cases:
Test cases should cover various scenarios with different GST amounts to ensure accurate input tax credit calculations.
Test Case 1:
Inputs: GST Amount Paid on Purchases = 50,000 INR, GST Amount Received on Sales = 80,000 INR.
Expected Output: Input Tax Credit ≈ 50,000 INR
Test Case 2:
Inputs: GST Amount Paid on Purchases = 1,00,000 INR, GST Amount Received on Sales = 1,20,000 INR.
Expected Output: Input Tax Credit ≈ 1,00,000 INR
Test Case 3:
Inputs: GST Amount Paid on Purchases = 30,000 INR, GST Amount Received on Sales = 40,000 INR.
Expected Output: Input Tax Credit ≈ 30,000 INR
Acceptance Criteria:
The application is considered successful if it produces correct input tax credit amounts based on the provided GST input amounts.
This SRS document outlines the requirements for the GST Input Tax Credit Calculator. It serves as a guide for the development team and ensures that the application meets the specified criteria. Review and approval by relevant stakeholders are essential before proceeding with the development phase.
