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Software Requirements Specification (SRS) for Stock Investment Calculator

Introduction

Purpose:

The purpose of this document is to define the requirements for the development of a Stock Investment Calculator. This web-based application aims to help users project returns on stock investments based on various parameters.

Scope:

The Stock Investment Calculator will provide users with an interface to input details such as the initial investment amount, expected annual return rate, investment duration, and other relevant parameters. The application will calculate and display the projected returns on the stock investment.

System Overview

System Description:

The system will be a client-server application. Users will access the Stock Investment Calculator through a web browser. The server will handle the logic for investment return 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:

Project Investment Returns:

  • Users can input details such as the initial investment amount, expected annual return rate, investment duration, and other relevant parameters.
  • The system will calculate and display the projected returns on the stock investment based on the provided information.
  • Users can adjust parameters to visualize the impact on projected returns.

Functional Requirements:

Input:

The system shall allow users to enter the following details:

  • Initial Investment Amount (in INR or other currency)
  • Expected Annual Return Rate (in percentage)
  • Investment Duration (in years)
  • Additional Parameters (if applicable, e.g., reinvestment of dividends)

Calculation:

  • The system shall calculate the projected returns on the stock investment based on standard parameters and user-input details.

Output:

  • The system shall display the calculated projected returns to the user.

External Interface Requirements

User Interfaces:

  • The user interface shall consist of input fields for the initial investment amount, expected annual return rate, investment duration, and other relevant parameters, along with a “Calculate” button.
  • The calculated projected returns 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 investment return 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 personalize investment projections.

Data Protection:

User data, if stored, should be securely protected.

Quality Attributes

Reliability:

The application should provide accurate projected returns based on the entered 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 investment amounts, expected annual return rates, investment durations, and additional parameters to ensure accurate projected returns.

Test Case 1:

  • Inputs: Initial Investment Amount = 1,00,000 INR, Expected Annual Return Rate = 10%, Investment Duration = 5 years, Reinvestment of Dividends = Yes.
  • Expected Output: Projected Returns ≈ 1,61,051 INR.

Test Case 2:

  • Inputs: Initial Investment Amount = $10,000, Expected Annual Return Rate = 8%, Investment Duration = 10 years, Reinvestment of Dividends = No.
  • Expected Output: Projected Returns ≈ $21,589.

Test Case 3:

  • Inputs: Initial Investment Amount = 50,000 INR, Expected Annual Return Rate = 12%, Investment Duration = 8 years, Reinvestment of Dividends = Yes.
  • Expected Output: Projected Returns ≈ 1,25,892 INR.

Acceptance Criteria:

The application is considered successful if it produces correct projected returns 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:

StockInvestment_Calculator_Records:

  • RecordID (Primary Key, Auto-increment)
  • InitialInvestmentAmount (Decimal)
  • ExpectedAnnualReturnRate (Decimal)
  • InvestmentDuration (Integer)
  • AdditionalParameters (Text)
  • ProjectedReturns (Decimal)
  • CalculationDate (DateTime)

Conclusion

This SRS document outlines the requirements for the Stock Investment 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.

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