Performance Engineering / Maintainability
Kind: tension
Record: tension:maintainability-performance-engineering
Canonical: Schema
"performance-engineering" (performance-core layer) is traded against "Maintainability" (human-factors layer) — a principle cannot be scope-separated from a quality, metric, or cost it competes with; resolve by measuring "Maintainability" and choosing an explicit operating point.
Listed in Tensions, after Latency / Throughput/Batching and before Algorithmic Efficiency / Implementation Simplicity.