This document discusses subsea architecture and equipment used for offshore oil and gas development. It describes how the subsea layout is defined, including well positioning, manifolds, and flowline routing. It also discusses the types of subsea structures used, such as foundations and protection structures. Specifically, it examines deepwater foundations including mud mats, suction piles, and driven piles. Subsea production equipment like wellheads, manifolds, and flowlines are also outlined. Well grouping using templates, jumpers, and manifolds is explained as a way to connect multiple wells to flowlines.