terra-project System Requirements Document

Introduction

The terra-project aims to develop a simple single-page design of a calculator. This document outlines the system requirements necessary to achieve the project's objectives.

System Overview

The terra-project is focused on creating a user-friendly, single-page calculator application. The application will provide basic arithmetic operations and a clean, intuitive interface suitable for users in India. The design will prioritize simplicity and ease of use.

Functional Requirements

• 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 or result.
• As a User, I should be able to view the current input and result on the display.
• As a User, I should be able to use the calculator on a single page without any navigation.

User Personas

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

Core User Flows

• User opens the calculator -> Inputs numbers and operations -> Views result -> Clears input if needed -> Continues calculations.

Visuals Colors and Theme

• primary: #3498db (a calming blue for the main interface)
• primary_light: #85c1e9 (a lighter blue for hover states)
• secondary: #e74c3c (a contrasting red for error messages or alerts)
• accent: #f1c40f (a vibrant yellow for buttons and active states)
• highlight: #f39c12 (an orange for hover states and notifications)
• bg: #ecf0f1 (a light grey for the background)
• surface: rgba(255, 255, 255, 0.9) (a white for the calculator surface)
• text: #2c3e50 (a dark blue for primary text)
• text_muted: #7f8c8d (a muted grey for secondary text)
• border: rgba(44, 62, 80, 0.2) (a subtle border color)

Signature Design Concept

The terra-project's calculator will feature an interactive, minimalist design where the buttons appear to "press" into the screen when clicked, providing a tactile feedback effect. The interface will use a combination of smooth animations and transitions powered by framer-motion to enhance user interaction. The calculator will have a responsive layout that adapts seamlessly to different screen sizes, ensuring a consistent user experience across devices.

Interaction Model & Motion Direction

• Interaction Model: Animated
  • The calculator will feature smooth transitions and animations for button presses and result displays.
  • Hover effects will provide visual feedback, enhancing the user experience.

Non-Functional Requirements

• The application should load quickly and perform calculations efficiently.
• The design should be responsive and accessible on various devices and screen sizes.
• The interface should be intuitive and require minimal user training.

Tech Stack

• Frontend: React for Web
• Backend: Not applicable (as the project is a simple single-page application)
• Database: Not applicable
• AI Models: Not applicable
• Local orchestration: Not applicable
• Server-side orchestration: Not applicable

Assumptions and Constraints

• The calculator will only perform basic arithmetic operations.
• The application will be a single-page design with no additional navigation.
• The project will adhere to locale-specific defaults for India, such as currency and timezone assumptions.

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.