Concurrency is a feature
The final stock unit, final slot, final Mario capacity, last coupon redemption and concurrent wallet balance all require simultaneous-request testing.
Production Quality Gates
A feature is not complete because the Happy Path worked once.
Every feature is closed against validation, loading, empty, error, retry, permissions, concurrency, Arabic/English parity, responsive behavior, analytics, audit, and migration behavior when applicable.
15 quality gates
20 critical scenarios
INTERACTIVE REVIEW
Production-readiness checklist
Use it during design review or UAT. The checked state is stored locally in the browser and never changes server data.
CRITICAL TEST MATRIX
Scenarios that cannot wait until after launch
These tests target the areas most likely to cause overselling, double booking, duplicate payment, invalid balances or migration inconsistencies.
Recovery is designed
Payment pending, expired hold, slot change or unavailable Character must return the customer to a recoverable flow.
Migration is testable
Migrated account, historical order, future slot and future Character booking are part of UAT, not a backend-only concern.