Base120 · Decomposition

Layered Breakdown

DE · Decomposition

Decompose from system to subsystem to component progressively

Model code
DE4
Transformation
DE (Decomposition) — Break problems into factors, layers, and independent subproblems.
Priority
4 of 20
Framework
HUMMBL Base120 — 120 mental models across 6 transformations

When to use

"Use when a system has natural hierarchical structure. Decompose progressively from system to subsystem to component, so each level can be understood in terms of the level below."

Example

"A car decomposes into powertrain, chassis, body, electrical. Powertrain decomposes into engine, transmission, drivetrain. Engine decomposes into block, cylinders, fuel system, cooling system. Each level is understandable in terms of the level below."

Common misuse

"Decomposing to a single level when the system has multiple natural levels. Single-level decomposition either misses detail (too coarse) or overwhelms with detail (too fine). Hierarchical decomposition manages complexity by levels."

Also known as

Hierarchical DecompositionSystem-Subsystem-Component Breakdown

Related models

DE3DE1P13