Fitness Functions / Rule Maintenance
Kind: tension
Record: tension:fitness-functions-rule-maintenance
Canonical: Schema
"fitness-functions" (evolution-principles layer) is traded against "Rule Maintenance" (evolution-principles layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Rule Maintenance" and choosing an explicit operating point.
Listed in Tensions, after Gap Analysis / Time Cost and before Quality Attributes / Competing Attributes.