tough-start System Requirements Document

1. Introduction

The "tough-start" project aims to develop a simple single-page calculator design. This document outlines the system requirements, functional specifications, and design concepts necessary for the successful implementation of the project.

2. System Overview

The "tough-start" project will deliver a user-friendly, single-page calculator application. The calculator will perform basic arithmetic operations and provide a clean, intuitive interface for users.

3. Functional Requirements as Story Points

• As a User, I should be able to perform basic arithmetic operations such as addition, subtraction, multiplication, and division.
• As a User, I should be able to clear the current input to start a new calculation.
• As a User, I should be able to view the result of my calculation immediately after pressing the equals button.
• As a User, I should be able to use a decimal point for fractional calculations.
• As a User, I should be able to use a backspace function to correct my input.

4. User Personas

• User: A general user who needs to perform basic arithmetic calculations quickly and efficiently.

5. Core User Flows

• User opens the calculator application -> inputs numbers and operations -> presses equals to get the result -> clears input to start a new calculation.

6. Visuals Colors and Theme

[Default — not specified by user]

• primary: #4CAF50 (Green)
• primary_light: #81C784 (Light Green)
• secondary: #FFC107 (Amber)
• accent: #FF5722 (Deep Orange)
• highlight: #FFEB3B (Yellow)
• bg: #FFFFFF (White)
• surface: #F5F5F5 (Light Grey)
• text: #212121 (Dark Grey)
• text_muted: #757575 (Grey)
• border: #BDBDBD (Grey)

7. Signature Design Concept

The calculator will feature an interactive design where each button press triggers a subtle animation, enhancing user engagement. The buttons will have a "press" effect, slightly shrinking and changing color to indicate activation. The display area will have a smooth transition effect when updating the result, providing a seamless user experience. The design will be minimalistic, focusing on clarity and ease of use.

LANDING HERO MOTION BRIEF

The landing page will feature a continuous animation loop where numbers and symbols float gently across the screen, representing the calculator's functionality. When a user interacts with the calculator, the floating elements will gather around the display area, highlighting the active calculation. This animation will be created using motion/react for smooth transitions and interactions.

8. Interaction Model & Motion Direction

• Intended Interaction Model: Animated
  • The landing page will feature moderate scroll-triggered reveals and hover transitions. Interactive elements will have spring physics for a polished user experience.

9. Non-Functional Requirements

• The application must load quickly and perform calculations without noticeable delay.
• The design should be responsive and work seamlessly on various devices and screen sizes.

10. Tech Stack

[Default — not specified by user]

• Frontend: React for Web
• Backend: Not applicable for a single-page calculator
• Database: Not applicable for a single-page calculator

11. Assumptions and Constraints

• The calculator will only perform basic arithmetic operations.
• The application will be a single-page design with no backend or database requirements.

12. Glossary

• Arithmetic Operations: Basic mathematical operations including addition, subtraction, multiplication, and division.
• Responsive Design: An approach to web design that makes web pages render well on a variety of devices and window or screen sizes.