Software Requirements Specification (SRS) for CAGR Calculator

Introduction

Purpose:

The purpose of this document is to define the requirements for the development of a CAGR (Compound Annual Growth Rate) Calculator. This web-based application aims to calculate the annual growth rate of an investment over a specified period.

Scope:

The CAGR Calculator will provide users with an interface to input initial and final investment values and the investment period. The application will calculate and display the Compound Annual Growth Rate (CAGR) for the given investment.

System Overview

System Description:

The system will be a client-server application. Users will access the CAGR Calculator through a web browser. The server will handle the logic for CAGR 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 Compound Annual Growth Rate:

• Users can input initial investment value, final investment value, and the investment period (in years).
• The system will calculate and display the Compound Annual Growth Rate (CAGR) for the given investment.

Functional Requirements:

Input:

The system shall allow users to enter the following details:

• Initial Investment Value (in INR)
• Final Investment Value (in INR)
• Investment Period (in years)

Calculation:

The system shall calculate the Compound Annual Growth Rate (CAGR) based on the provided investment values and period.

Output:

• The system shall display the calculated CAGR to the user.

External Interface Requirements

User Interfaces:

• The user interface shall consist of input fields for initial investment value, final investment value, and investment period, along with a “Calculate” button.
• The calculated CAGR 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 CAGR 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 financial regulations.

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 CAGR calculations based on the entered investment 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 initial and final investment values and investment periods to ensure accurate CAGR calculations.

Test Case 1:

• Inputs: Initial Investment Value = 50,000 INR, Final Investment Value = 80,000 INR, Investment Period = 5 years.
• Expected Output: CAGR ≈ 10.24%

Test Case 2:

• Inputs: Initial Investment Value = 1,00,000 INR, Final Investment Value = 1,50,000 INR, Investment Period = 3 years.
• Expected Output: CAGR ≈ 19.22%

Test Case 3:

• Inputs: Initial Investment Value = 2,00,000 INR, Final Investment Value = 2,20,000 INR, Investment Period = 2 years.
• Expected Output: CAGR ≈ 9.41%

Acceptance Criteria:

• The application is considered successful if it produces correct CAGR values based on the provided investment details.

Project Timeline

Milestones:

 Design, Development, Testing, Deployment.

Development Phases:

Frontend development, Backend development, Testing, Deployment.

Glossary

None

Database Structure

Tables:

CAGR_Calculator_Records:

• RecordID (Primary Key, Auto-increment)
• InitialInvestmentValue (Decimal)
• FinalInvestmentValue (Decimal)
• InvestmentPeriod (Integer)
• CAGR (Decimal)
• CalculationDate (DateTime)

Conclusion

This SRS document outlines the requirements for the CAGR 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.