mercy-start System Requirements Document

Introduction

The purpose of this document is to outline the system requirements for the "mercy-start" project, which involves developing a single-page application (SPA) for a simple calculator. This document will provide a comprehensive overview of the system, functional requirements, user personas, core user flows, visual design, interaction model, non-functional requirements, tech stack, assumptions, constraints, and glossary.

System Overview

The "mercy-start" project aims to create a user-friendly, single-page calculator application. The application will provide basic arithmetic operations and will be accessible via a web browser. The system will be designed to ensure a seamless user experience with quick response times and intuitive interactions.

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 instantly.
• As a User, I should be able to use the calculator on various devices with different screen sizes.

User Personas

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

Core User Flows

• User opens the calculator application -> User inputs numbers and selects an operation -> User views the result -> User clears the input for a new calculation.

Visuals Colors and Theme

[Default — not specified by user]

• primary: #007BFF (a calm blue for primary buttons and highlights)
• primary_light: #66B2FF (a lighter tint of blue for hover states)
• secondary: #6C757D (a neutral gray for secondary elements)
• accent: #28A745 (a green for CTAs and active states)
• highlight: #FFC107 (a yellow for notifications and alerts)
• bg: #FFFFFF (a clean white background)
• surface: #F8F9FA (a light gray for card/panel backgrounds)
• text: #212529 (a dark gray for primary text)
• text_muted: #6C757D (a softer gray for secondary text)
• border: #DEE2E6 (a subtle gray for borders)

Signature Design Concept

The homepage of the calculator will feature an interactive, animated number pad that responds to user clicks with smooth transitions. Each button will have a subtle shadow that deepens when pressed, giving a tactile feel. The display area will have a digital screen effect, with numbers appearing as if on an LED display. The calculator will have a minimalist design, focusing on ease of use and clarity.

Landing Hero Motion Brief

The landing page will feature a continuous animation where numbers and operations flow into the calculator display, demonstrating a calculation process. The animation will loop every 10 seconds, showing numbers being entered, calculated, and results displayed. This will be achieved using motion/react for smooth transitions and interactions. The animation will pause when the user interacts with the calculator, ensuring focus on user input.

Interaction Model & Motion Direction

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

Non-Functional Requirements

• The application should load quickly and perform calculations instantly.
• The application should be responsive and work on various screen sizes.
• The application should be accessible and easy to use for all users.

Tech Stack

• Frontend: React for Web
• Backend: Not applicable (as the application is a single-page calculator)
• Database: Not applicable
• AI Models: Not applicable
• AI Tools: Not applicable
• Local Orchestration: Not applicable
• Server-Side Orchestration: Not applicable

Assumptions and Constraints

• The application will be a single-page application with no backend integration.
• The calculator will only perform basic arithmetic operations.
• The application will be accessible via modern web browsers.

Glossary

• SPA: Single-Page Application
• UI: User Interface
• UX: User Experience

This document outlines the requirements for the "mercy-start" project, ensuring a clear understanding of the project's scope and objectives.