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A/B Tests as Quality Gates
3.1Beyond Product ExperimentationA/B testing is typically associated with product experimentation -- testing whether a green button converts better than a blue one. But QA…3.2Quality-Focused A/B MetricsThe power of using A/B testing infrastructure for quality is that you get causal evidence, not just correlation. Because users are randomly…3.3Statistical Significance for Quality GatesQuality gate decisions must be statistically rigorous. A naive comparison ("canary error rate is 2.1% vs. control 2.0%") can lead to false…3.4Multi-Metric Quality GatesReal-world quality gates evaluate multiple metrics simultaneously:3.5Automated Quality Gate PipelineIntegrate quality gates into your deployment pipeline:3.6When A/B Testing Beats Simple CanaryUse simple canary analysis for infrastructure and backend changes. Use A/B quality gates when the change affects user-facing behavior where…