Mango-a System Requirements Document

1. Introduction

This document outlines the system requirements for the Mango-a project, which aims to develop a simple single-page calculator design. The project is intended to provide users with a straightforward and efficient tool for performing basic arithmetic operations.

2. System Overview

The Mango-a project will deliver a web-based calculator application that is accessible on various devices. The application will focus on simplicity and ease of use, ensuring that users can perform calculations quickly and accurately.

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 calculation to start a new one.
• As a User, I should be able to view the current input and result on the calculator display.

4. User Personas

• User: An individual who needs to perform basic arithmetic calculations using a simple and intuitive interface.

5. Core User Flows

• User opens the calculator application -> User inputs numbers and selects an operation -> User views the result on the display -> User clears the calculation to start a new one.

6. Visuals Colors and Theme

[Default — not specified by user]

• primary: #3498db (a calming blue for the main interface)
• primary_light: #5dade2 (a lighter blue for hover states)
• secondary: #2ecc71 (a green for secondary elements)
• accent: #e74c3c (a red for error messages or alerts)
• highlight: #f1c40f (a yellow for active states)
• bg: #ecf0f1 (a light grey for the background)
• surface: #ffffff (white for the calculator surface)
• text: #2c3e50 (a dark blue for text)
• text_muted: #95a5a6 (a grey for secondary text)
• border: #bdc3c7 (a subtle grey for borders)

7. Signature Design Concept

The Mango-a calculator will feature an interactive design where the buttons appear to press down and pop back up when clicked, providing a tactile feedback experience. The interface will have a clean and modern look with rounded buttons and a digital display that mimics a physical calculator.

Landing Hero Motion Brief

The landing page will feature a continuous animation where numbers and operations are dynamically entered into the calculator, demonstrating its functionality. This will be achieved using motion/react for smooth transitions. The animation will loop every 10 seconds, showing a sequence of operations that resolve into a final result, highlighting the calculator's ease of use.

8. Interaction Model & Motion Direction

• Interaction Model: Animated
  • The calculator will feature moderate animations for button presses and result displays, enhancing user interaction without overwhelming the simplicity of the design.

9. Non-Functional Requirements

• The application must load quickly and be responsive across different devices and screen sizes.
• The calculator should be accessible and usable with keyboard inputs.

10. Tech Stack

[Default — not specified by user]

• Frontend: React for Web
• Backend: Not applicable (single-page application)
• Database: Not applicable (no data storage required)
• Local orchestration: Docker for development environment

11. Assumptions and Constraints

• The calculator will not support advanced scientific functions.
• The application will be developed as a single-page application with no server-side logic.

12. Glossary

• Single-page application (SPA): A web application that interacts with the user by dynamically rewriting the current page rather than loading entire new pages from the server.
• React: A JavaScript library for building user interfaces, particularly single-page applications.