Crystal-Application System Requirements Document

Introduction

The Crystal-Application is a simple, single-page todo application designed for personal use. The focus is on providing a streamlined and user-friendly interface that allows users to manage their tasks efficiently without unnecessary complexities.

System Overview

The Crystal-Application is intended to be a lightweight and intuitive todo application. It will be developed as a single-page application (SPA) to ensure seamless user interactions and quick access to core functionalities such as adding, editing, and deleting tasks. The application will be optimized for personal productivity, emphasizing simplicity and ease of use.

Functional Requirements

• As a User, I should be able to add new tasks.
• As a User, I should be able to edit existing tasks.
• As a User, I should be able to delete tasks.
• As a User, I should be able to view all tasks on a single page.

User Personas

• User: The primary user of the Crystal-Application is an individual seeking a simple and efficient tool to manage personal tasks. The user values ease of use and a clean interface.

Visuals Colors and Theme

• primary: #4A90E2 (a calming blue for the main interface)
• primary_light: #A6C8FF (a lighter blue for hover states)
• secondary: #FF6F61 (a vibrant coral for emphasis and links)
• accent: #FFD700 (a bright gold for call-to-action buttons)
• highlight: #FFA500 (a warm orange for notifications and active states)
• bg: #F5F5F5 (a soft grey for the background)
• surface: rgba(255, 255, 255, 0.9) (a near-white for cards and panels)
• text: #333333 (a dark grey for primary text)
• text_muted: #777777 (a lighter grey for secondary text)
• border: rgba(200, 200, 200, 0.5) (a subtle grey for borders)

Signature Design Concept

The Crystal-Application will feature an interactive "Task Carousel" on the homepage. Users will interact with their tasks through a dynamic carousel interface where tasks are displayed as cards. Users can swipe left or right to navigate through tasks, and tapping a card will flip it to reveal editing options. This carousel will utilize framer-motion for smooth transitions and spring physics, making task management engaging and visually appealing. The background will subtly shift colors based on the time of day, providing a fresh and adaptive user experience.

Interaction Model & Motion Direction

The landing page will utilize an "animated" interaction model. The task carousel will feature scroll-triggered reveals and hover transitions, providing a polished and engaging experience. Internal pages will maintain a "static" interaction model to ensure clarity and focus on task management.

Non-Functional Requirements

• The application should load within 2 seconds on a standard broadband connection.
• The user interface should be responsive and accessible on both desktop and mobile devices.
• The application should handle up to 100 tasks without performance degradation.

Tech Stack

• Frontend: React for Web
• Backend: Python with FastAPI
• Database: MySQL or MariaDB, using Alembic for migrations
• Local orchestration: Docker, docker-compose

Assumptions and Constraints

• The application is intended for personal use and will not require user authentication.
• The design will prioritize simplicity and ease of use over advanced features.
• The application will be developed as a single-page application to ensure a seamless user experience.

Glossary

• SPA: Single-Page Application, a web application that interacts with the user by dynamically rewriting the current page rather than loading entire new pages from the server.
• Task Carousel: An interactive interface element that allows users to navigate through tasks in a visually engaging manner.
• Framer-motion: A library for creating animations and transitions in React applications.