Overview

The Product Catalog subdomain is responsible for managing all product-related information in the e-commerce system. This includes product details, hierarchical categorization, inventory tracking, and customer reviews.

Core Responsibilities

Product Management

• Maintain product information including pricing, descriptions, and specifications
• Support product variants (size, color, style)
• Handle product lifecycle (active, discontinued, draft)
• Manage product relationships and cross-selling

Category Management

• Organize products into hierarchical categories
• Support multi-level category structures
• Maintain category metadata and SEO information
• Handle category navigation and filtering

Inventory Management

• Track stock levels and availability
• Manage reorder points and stock alerts
• Handle inventory reservations and allocations
• Support warehouse and location management

Review Management

• Collect and manage customer product reviews
• Calculate review metrics and ratings
• Moderate review content
• Support review helpfulness and responses

Key Entities

• Product: Central aggregate containing all product information
• Category: Hierarchical product categorization system
• Inventory: Stock tracking and availability management
• Review: Customer feedback and rating system

Business Rules

• Products must belong to an active category
• Inventory levels affect product availability
• Reviews require verified purchases
• Category hierarchies have maximum depth limits