This document discusses different patterns for integrating AEM (Adobe Experience Manager) with e-commerce platforms. It begins with an overview of a reference architecture and integration points. It then describes three main integration patterns - the Unified UI pattern, Modern Web Application Framework pattern, and Distributed UI pattern. For each pattern, it outlines how content, products, users and other elements are managed. It also covers performance considerations and provides a comparison matrix of the patterns based on factors like authoring ease and time to market.