Open/Closed Principle (OCP) / Simplicity
Kind: tension
Record: tension:open-closed-principle-ocp-simplicity
Canonical: Schema
"open-closed" (structural-core layer) is traded against "Simplicity" (human-factors layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Simplicity" and choosing an explicit operating point.
Listed in Tensions, after Dependency Inversion Principle (DIP) / Runtime Indirection and before Liskov Substitution Principle (LSP) / Narrow Specialized Behavior.