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Software Requirements Specification (SRS) for Emergency Fund Calculator

Introduction

Purpose:

The purpose of this document is to outline the requirements for the development of an Emergency Fund Calculator application. This application guides users in calculating the recommended emergency fund based on their expenses, helping them establish a financial safety net.

Scope:

The Emergency Fund Calculator will provide users with a tool to assess their monthly expenses and calculate an appropriate emergency fund based on a predefined safety margin. Users will input details such as monthly living expenses, loan payments, and other financial obligations, and the system will calculate and display the recommended emergency fund amount.

System Overview

System Description:

The Emergency Fund Calculator will be a web-based application accessible through a browser. It aims to assist users in making informed financial decisions by providing a personalized recommendation for their emergency fund based on their specific financial situation.

System Architecture:

The application will follow a client-server architecture, with the client being the web browser and the server handling the emergency fund calculation logic.

Functional Requirements

 Use Cases:

Calculate Emergency Fund:

  • Users can input details such as monthly living expenses, loan payments, and other financial obligations.
  • The system will calculate and display the recommended emergency fund amount based on a predefined safety margin.

Functional Requirements:

Input:

The system shall accept the following input:

  • Monthly Living Expenses (in INR)
  • Loan Payments (in INR)
  • Other Financial Obligations (in INR)

Calculation:

  • The system shall calculate the recommended emergency fund amount based on the provided input and a predefined safety margin.

Output:

  • The system shall display the recommended emergency fund amount to the user.

Non-Functional Requirements:

  • The system should provide a response time of under 3 seconds.
  • The application should be accessible on common web browsers (Chrome, Firefox, Safari).

External Interface Requirements

User Interfaces:

  • The user interface shall include input fields for monthly living expenses, loan payments, and other financial obligations, along with a “Calculate” button.
  • The calculated recommended emergency fund amount shall be displayed prominently.

Hardware Interfaces:

  • The system should be compatible with standard computing hardware.

Software Interfaces:

  • The application shall be developed using HTML, CSS, and JavaScript.
  • The server-side logic can be implemented using a backend framework (e.g., Node.js, Django).

Communication Interfaces:

  • The application will communicate with the server for the emergency fund calculation and display of results.

Performance Requirements

Response Time:

The system should respond within 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 financial regulations.

Hardware Limitations:

The system should be compatible with devices with standard web-browsing capabilities.

Security Requirements

Authentication:

The application may or may not require user authentication, depending on whether users want to save their emergency fund calculation data.

Data Protection:

If authentication is implemented, user data should be stored securely.

Quality Attributes

Reliability:

The application should produce accurate results based on the provided input.

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 monthly living expenses, loan payments, and other financial obligations to ensure accurate recommended emergency fund calculations.

Test Case 1:

  • Inputs: Monthly Living Expenses = 30,000 INR, Loan Payments = 10,000 INR, Other Financial Obligations = 5,000 INR.
  • Expected Output: Recommended Emergency Fund ≈ 72,000 INR

Test Case 2:

  • Inputs: Monthly Living Expenses = 50,000 INR, Loan Payments = 15,000 INR, Other Financial Obligations = 7,000 INR.
  • Expected Output: Recommended Emergency Fund ≈ 120,000 INR

Test Case 3:

  • Inputs: Monthly Living Expenses = 20,000 INR, Loan Payments = 5,000 INR, Other Financial Obligations = 3,000 INR.
  • Expected Output: Recommended Emergency Fund ≈ 48,000 INR

Acceptance Criteria:

The application is considered successful if it produces correct recommended emergency fund amounts based on the provided financial inputs.

Project Timeline

Milestones:

Design, Development, Testing, Deployment.

Development Phases:

Frontend development, Backend development, Testing, Deployment.

Glossary

None

Database Structure

Tables:

Emergency_Fund_Calculator_Records:

  • RecordID (Primary Key, Auto-increment)
  • MonthlyLivingExpenses (Decimal)
  • LoanPayments (Decimal)
  • OtherFinancialObligations (Decimal)
  • RecommendedEmergencyFund (Decimal)
  • CalculationDate (DateTime)

Conclusion

This extended SRS document provides a more detailed overview of the Emergency Fund Calculator application, including the database structure and additional test cases. It should be reviewed and approved by relevant stakeholders before proceeding with the development phase.

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