System Requirements Document for frozen-architecture

Introduction

The purpose of this document is to outline the system requirements for the "frozen-architecture" project, a production-ready food delivery platform inspired by Zomato/Swiggy functionality. The platform will feature original branding, UI, code, and assets, ensuring a scalable, secure, and commercial-grade application.

System Overview

The "frozen-architecture" project aims to deliver a comprehensive food delivery platform with distinct applications for customers, restaurant owners, delivery partners, and administrators. The platform will support real-time tracking, robust payment systems, and extensive testing, ensuring all calculations occur server-side and implementing secure practices throughout.

Product Interpretation and Delivery Boundary

• Domain Descriptors:

  • Food Delivery Platform: Designed to facilitate food ordering and delivery services.
  • Real-Time Order Management: Essential for order tracking and delivery.

• What is being built:

  • A food delivery platform with original branding and functionality inspired by Zomato/Swiggy.
  • Custom UI for various user roles and real-time features.

• Excluded Assumptions:

  • Generic e-commerce features.
  • Non-food related services.

• Access:

  • Application-owned identity with persistent identity management.

• Behavior Contracts:

  • Customer Order Placement: Customers can select items, proceed to checkout, and place orders.
  • Restaurant Order Management: Restaurant owners manage orders and update preparation status.
  • Real-Time WebSocket Connection: Establishes real-time updates for users.
  • Payment Verification: Secure payment processing and verification.
  • Delivery Assignment: Automated process for finding and ranking delivery partners.

Page Content and Component Coverage

• Customer App:

  • Search for restaurants and food items.
  • View restaurant details, menu, and reviews.
  • Manage cart and checkout process.
  • Real-time order updates and notifications.

• Restaurant Dashboard:

  • Manage restaurant listings, menus, and orders.
  • View analytics and revenue reports.
  • Respond to customer reviews.

• Delivery Partner App:

  • Accept and fulfill delivery assignments.
  • Track earnings and manage availability.

• Admin Dashboard:

  • User, restaurant, and driver management.
  • Monitor orders and handle support tickets.
  • Manage coupons, refunds, and analytics.

Functional Requirements as Story Points

• As a Customer, I should be able to authenticate using phone OTP, email, or Google login.
• As a Customer, I should be able to search for restaurants, food items, and cuisines.
• As a Customer, I should be able to filter search results by rating, distance, and price.
• As a Customer, I should be able to manage my cart, apply coupons, and proceed to checkout.
• As a Restaurant Owner, I should be able to manage my restaurant's menu and orders.
• As a Delivery Partner, I should be able to accept delivery assignments and track orders.
• As an Admin, I should be able to manage users, restaurants, and drivers.
• As a System, I should ensure all financial calculations are performed server-side.
• As a System, I should verify payments using secure webhooks.

User Personas

• Customer: End-user who orders food through the platform.
• Restaurant Owner: Manages restaurant listings and orders.
• Delivery Partner: Handles food delivery to customers.
• Admin: Oversees platform operations and user management.
• Super Admin: Has elevated privileges for platform management.
• Support Agent: Provides customer support and resolves issues.

Core User Flows

1. Customer Order Flow:

   • Search for restaurants.
   • Select food items and add to cart.
   • Proceed to checkout and place order.
   • Receive real-time order updates.

2. Restaurant Management Flow:

   • Manage restaurant details and menu.
   • Accept or reject orders.
   • Update order preparation status.

3. Delivery Partner Flow:

   • Accept delivery assignments.
   • Navigate to pickup and delivery locations.
   • Confirm delivery completion.

4. Admin Management Flow:

   • Manage platform users and entities.
   • Monitor orders and handle support tickets.

Visuals Colors and Theme

• Primary: #FF5733 (Dominant brand color)
• Primary Light: #FF8A66 (Hover states and secondary UI)
• Secondary: #333333 (Supporting neutral color)
• Accent: #FFC300 (Emphasis for CTAs and active states)
• Highlight: #DAF7A6 (Hover states and notifications)
• Background: #FFFFFF (Page background color)
• Surface: #F2F2F2 (Card/panel background)
• Text: #000000 (Primary text/heading color)
• Text Muted: #666666 (Secondary text, labels)
• Border: #DDDDDD (Subtle accessible border color)

Signature Design Concept

The design concept for the "frozen-architecture" project will focus on a clean, modern aesthetic with a user-friendly interface. The Customer App's landing page will feature a prominent search bar and categories for easy navigation. The use of vibrant colors and clear typography will enhance readability and user engagement.

Interaction Model & Motion Direction

• Interaction Model: Animated
  • Moderate scroll-triggered reveals and hover transitions.
  • Spring physics on interactive elements for a polished experience.

Non-Functional Requirements

• Security: Implement HTTPS, JWT Authentication, rate limiting, input validation, SQL injection prevention, XSS protection, secure cookies, secret management, and audit logs.
• Performance: Ensure server-side calculations for financial transactions.
• Scalability: Support for real-time updates and notifications.

Tech Stack

• Frontend: Next.js + React + TypeScript, Tailwind CSS + shadcn/ui, Responsive PWA
• Backend: Node.js + NestJS, REST API with versioning
• Database: PostgreSQL + Prisma
• Cache & Jobs: Redis, BullMQ
• Real-Time: WebSocket / Socket.IO
• Storage: AWS S3 compatible storage
• Payments: Razorpay, PhonePe, Cashfree abstraction layer
• Maps: Google Maps or Mapbox abstraction

Assumptions and Constraints

• All prices, discounts, taxes, and delivery fees must be calculated on the server.
• Implement idempotency to prevent duplicate orders.
• Secure webhooks for payment verification.
• Coupon calculations must happen server-side.

Glossary

• RBAC: Role-Based Access Control
• PWA: Progressive Web App
• OTP: One-Time Password
• API: Application Programming Interface
• UI/UX: User Interface/User Experience
• JWT: JSON Web Token

This document serves as a comprehensive guide for the development of the "frozen-architecture" project, ensuring all requirements are met for a successful implementation.