Order Management MVP - Product Requirements Document

Order Management MVP - Product Requirements Document

Title

Order Management MVP

Project Overview

Enable customers to create and track orders end-to-end through a complete order management system.

Goals

• Provide a complete order lifecycle management system
• Enable real-time order tracking and status updates
• Support order creation, viewing, and listing capabilities
• Deliver a seamless customer experience for order management

Key Features

1. Create Order

Description: Allow customers to create new orders with comprehensive order details.

Core Fields:

• id - Unique order identifier
• user_id - Customer/user identifier
• items[] - Array of order items
• total - Total order amount
• status - Current order status

Functionality:

• Validate order data before creation
• Generate unique order ID
• Calculate order total from items
• Set initial order status
• Record order creation timestamp

2. View Order

Description: Display comprehensive order details with status timeline.

Features:

• Show all order information (id, user, items, total)
• Display current order status
• Show status timeline/history
• Display order creation and update timestamps
• Show item-level details

User Experience:

• Clean, readable order details page
• Visual status timeline
• Item breakdown with prices
• Status badges/indicators

3. List Orders

Description: Browse and search orders with filtering capabilities.

Filter Options:

• Filter by status (pending, processing, shipped, delivered, cancelled)
• Filter by date range
• Filter by user/customer
• Sort by date, status, total amount

Display Features:

• Paginated order list
• Summary view (id, user, total, status, date)
• Quick actions (view details, track status)
• Search functionality

Non-Functional Requirements

Performance

• P95 latency < 300ms for read endpoints (view order, list orders)
• P95 latency < 500ms for write endpoints (create order)
• Support concurrent order creation without conflicts

Reliability

• Error rate < 0.1% for all operations
• Graceful error handling and user-friendly error messages
• Data consistency guarantees for order state transitions

Scalability

• Handle up to 10,000 orders per day
• Support 100+ concurrent users
• Efficient database queries with proper indexing

Security

• Authentication required for all endpoints
• Users can only access their own orders (or admin access)
• Input validation to prevent injection attacks
• Secure handling of sensitive data (user info, payment details)

Data Model

Order Schema

{
  "id": "string (UUID)",
  "user_id": "string (UUID)",
  "items": [
    {
      "product_id": "string",
      "name": "string",
      "quantity": "integer",
      "price": "decimal",
      "subtotal": "decimal"
    }
  ],
  "total": "decimal",
  "status": "enum (pending, processing, shipped, delivered, cancelled)",
  "created_at": "timestamp",
  "updated_at": "timestamp",
  "status_history": [
    {
      "status": "string",
      "timestamp": "timestamp",
      "note": "string (optional)"
    }
  ]
}

API Endpoints

Create Order

• Method: POST
• Path: /api/orders
• Request Body: Order data (user_id, items[])
• Response: Created order with ID and status

View Order

• Method: GET
• Path: /api/orders/{order_id}
• Response: Complete order details with status timeline

List Orders

• Method: GET
• Path: /api/orders
• Query Parameters: status, user_id, start_date, end_date, page, limit
• Response: Paginated list of orders

Update Order Status (Admin/System)

• Method: PATCH
• Path: /api/orders/{order_id}/status
• Request Body: New status, optional note
• Response: Updated order

User Stories

Customer Stories

1. As a customer, I want to create an order with multiple items so that I can purchase products.
2. As a customer, I want to view my order details so that I can see what I ordered and the current status.
3. As a customer, I want to see all my orders so that I can track my purchase history.
4. As a customer, I want to filter my orders by status so that I can find specific orders quickly.

Admin Stories

1. As an admin, I want to view all customer orders so that I can manage fulfillment.
2. As an admin, I want to update order status so that I can reflect order progress.
3. As an admin, I want to filter orders by date and status so that I can process orders efficiently.

Success Metrics

• Order creation success rate > 99.9%
• Average order view latency < 200ms
• Customer satisfaction with order tracking > 90%
• Zero data loss or corruption incidents

Out of Scope (for MVP)

• Payment processing integration
• Inventory management
• Shipping integration
• Order modification/cancellation by customer
• Advanced analytics and reporting
• Email notifications
• Real-time updates (websockets)

Future Enhancements

• Order modification capabilities
• Automated status updates from shipping providers
• Email/SMS notifications for status changes
• Advanced search and filtering
• Bulk order operations
• Export order data to CSV/Excel
• Order analytics dashboard