agile-start System Requirements Document

Introduction

The purpose of this document is to outline the system requirements for the "agile-start" project, which aims to develop a simple single-page calculator design. This document will serve as a guide for the development team to ensure all necessary features and functionalities are implemented.

System Overview

The "agile-start" project is focused on creating a user-friendly, single-page calculator application. The calculator will perform basic arithmetic operations and provide an intuitive interface for users.

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 calculations immediately after input.
• As a User, I should be able to use a decimal point for more precise calculations.
• As a User, I should be able to use the calculator on both desktop and mobile devices.

User Personas

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

Core User Flows

1. User opens the calculator application.
2. User inputs numbers and selects an arithmetic operation.
3. User views the result immediately after completing the input.
4. User clears the input to perform a new calculation.

Visuals Colors and Theme

[Default — not specified by user]

• primary: #3498db (a calm blue for the main interface)
• primary_light: #85c1e9 (a lighter blue for hover states)
• secondary: #2ecc71 (a green for secondary actions)
• accent: #e74c3c (a red for error states or important actions)
• highlight: #f1c40f (a yellow for active indicators)
• bg: #ecf0f1 (a light gray for the background)
• surface: #ffffff (white for the calculator surface)
• text: #2c3e50 (a dark blue for primary text)
• text_muted: #95a5a6 (a gray for secondary text)
• border: #bdc3c7 (a subtle gray for borders)

Signature Design Concept

The calculator will feature an interactive, minimalist design with large, easy-to-press buttons. The signature concept will include a "floating" button effect where buttons slightly elevate when hovered over, providing a tactile feel. This will be achieved using motion/react for smooth animations.

Landing Hero Motion Brief

The landing page will display the calculator with a subtle animation loop where the buttons gently pulse to indicate interactivity. When a user clicks a button, it will depress and then return to its original state, simulating a physical button press. The animation will be smooth and responsive, ensuring a seamless experience across devices.

Interaction Model & Motion Direction

• Interaction Model: Animated
  • The calculator will feature hover transitions and smooth button animations to enhance user interaction.
• Internal Pages: Static
  • As this is a single-page application, there are no additional internal pages.

Non-Functional Requirements

• The application must load quickly and perform calculations without noticeable delay.
• The design must be responsive and function correctly on various screen sizes and devices.
• The application should be accessible, adhering to WCAG 2.1 guidelines.

Tech Stack

[Default — not specified by user]

• Frontend: React for Web
• Backend: None required for a single-page application
• Database: None required for a single-page application
• Local orchestration: Docker (for development environment setup)

Assumptions and Constraints

• The calculator will only perform basic arithmetic operations.
• The application will be a single-page design with no backend integration.
• The design will prioritize simplicity and ease of use.

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.

This document outlines the requirements for the agile-start project, ensuring a clear understanding of the project's goals and deliverables.