Status: OUT
SOLID's dual function — simultaneously serving as theoretical ground (LSP→DIP→OCP enabling composition) and conceptual map (structurally isomorphic to pattern mastery) — provides a primary mechanism for why OO design principles can be applied across scales: because the same framework both enables and maps composition across the 3×4 design space (three scales × four behavioral dimensions), designers can apply consistent principles at object, pattern, and architecture scales without requiring scale-specific methodologies. This scale-consistency is supported by the framework's self-grounding property, where SOLID's dual nature makes the framework's internal coherence a structural consequence rather than a coincidence of independent principles.
Self-grounding (same framework enables and maps composition) is the mechanism behind scale-invariant design
Depends on (SL): complete-framework-self-grounding, solid-enables-full-scale-dimension-design