Use when deciding how to decompose a system into modules or packages along independent variation axes, and where each concern's boundary belongs. Triggers on shared-core plus per-variant leaves, package-by-feature vs package-by-layer, sibling naming symmetry, parallel consumers that should mirror th
Use when deciding how to decompose a system into modules or packages along independent variation axes, and where each concern's boundary belongs. Triggers on shared-core plus per-variant leaves, package-by-feature vs package-by-layer, sibling naming symmetry, parallel consumers that should mirror the same concepts, cross-axis constraints, cross-cutting concerns that are not axes, false modularity,