System Requirements Document (SRD)

1. Introduction

This document outlines the system requirements for a website dedicated to buying and selling pets. The platform aims to connect pet lovers and sellers, providing a trustworthy and user-friendly experience. The initial focus will be on implementing basic chat functionality, with video calling features planned for future development.

2. System Overview

The pet buying and selling website will serve as a platform where users can browse, list, and purchase pets. The system will include features such as user registration, pet listings, a chat system for communication, and a responsive design for mobile and desktop users. The platform will prioritize ease of use, security, and scalability.

3. Functional Requirements as Story Points

• As a User, I should be able to register and log in to the platform.
• As a User, I should be able to create, edit, and delete pet listings.
• As a User, I should be able to browse and search for pet listings using filters (e.g., species, breed, age, location).
• As a User, I should be able to initiate and participate in real-time chat with other users.
• As a User, I should be able to report inappropriate listings or behavior.
• As an Admin, I should be able to manage user accounts and moderate content.
• As a User, I should be able to view my chat history.
• As a User, I should be able to mark chats as important or archive them.
• As a User, I should be able to schedule video calls for future communication (deferred for later implementation).

4. User Personas

• User (Buyer/Seller): Individuals looking to buy or sell pets. They need features like browsing, listing, and chat to communicate with other users.
• Admin: Responsible for managing the platform, moderating content, and resolving disputes.

5. Visuals Colors and Theme

The website will use a warm and inviting color palette to create a friendly and trustworthy atmosphere:

• Primary Color: Soft Blue (#6BAED6) – Represents trust and calmness.
• Secondary Color: Warm Orange (#F4A261) – Adds energy and friendliness.
• Accent Color: Light Green (#A8D5BA) – Symbolizes nature and pets.
• Background: Off-White (#F9F9F9) – Clean and neutral for readability.
• Text: Dark Gray (#333333) – Ensures high contrast and readability.

6. Signature Design Concept

The homepage will feature an interactive pet adoption park. Users will land on a vibrant, animated park scene where pets (dogs, cats, birds, etc.) roam around playfully. Each pet will represent a category (e.g., dogs, cats, birds), and clicking on a pet will take the user to the respective listings.

Details:

• Animations: Pets will move subtly (e.g., wagging tails, hopping, flying) to create a lively atmosphere.
• Transitions: Smooth transitions when navigating between sections, with a fade-in effect for content.
• Micro-interactions: Hovering over a pet will display its category name (e.g., "Dogs") with a playful animation (e.g., a bark sound or a wagging tail).
• Background: A dynamic sky that changes based on the time of day (e.g., sunrise, daylight, sunset, night).
• User Interaction: Users can click on a "Start Exploring" button to zoom into the park and begin browsing listings.

This design will make the website memorable and engaging, creating an emotional connection with users.

7. Non-Functional Requirements

• The system must be responsive and work seamlessly on both desktop and mobile devices.
• The chat system must support real-time communication with minimal latency.
• The platform must ensure data security and user privacy.
• The system must be scalable to handle a growing number of users and listings.
• The website must load within 3 seconds on a standard broadband connection.

8. Tech Stack

• Frontend: React for Web
• Backend: Python with FastAPI
• Database (RDBMS): MySQL with Alembic for migrations
• Real-Time Communication: WebSockets for chat functionality
• Local Orchestration: Docker and docker-compose
• Server-Side Orchestration: Kubernetes

9. Assumptions and Constraints

• The initial release will focus on basic chat functionality, with video calling deferred for future updates.
• The platform will primarily target users in regions with stable internet connectivity.
• The system will support English as the primary language, with potential for multilingual support in future iterations.
• Users must have a valid email address to register on the platform.

10. Glossary

• User: An individual who uses the platform to buy or sell pets.
• Admin: A person responsible for managing and moderating the platform.
• Chat System: A feature that allows users to communicate in real-time.
• Video Calling: A feature that enables users to have face-to-face communication through video (deferred for future implementation).
• WebRTC: A technology used for real-time communication, such as video calling.
• Responsive Design: A design approach that ensures the website works well on devices of all sizes.

This updated SRD reflects the user's request to prioritize basic chat functionality while deferring video calling implementation.