Designing Layered Architectures

This lesson takes a deep dive into designing layered architectures, covering how to separate functionality into discrete layers such as presentation, service, business, data, and system-wide layers. It explores layering strategies including single-node versus multi-tier deployment, which layers to include or omit, merging layers, and loose versus strict layer interaction models. The lesson also covers identifying system-wide concerns like caching and authentication, and defining layer interfaces through public interfaces, facades, and behavioral design patterns.