Data Warehouses, Data Marts, Data Lakes, and Lakehouses - Explained Like You’re Building Them in Real Life

If you’ve been around data engineering long enough, you’ve probably heard these terms thrown around in meetings: “Just dump it in the data lake” “We’ll expose it through the warehouse” “That goes into the mart” “We’re moving to a lakehouse architecture” And honestly… it can sound like four different ways of saying the same thing. They’re not. Each one solves a slightly different problem in the data ecosystem. Once you understand the “why” behind each, the architecture suddenly feels a lot less l