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The article explains why testing is essential in software development and introduces ten widely used defect metrics—such as defect density, arrival rate, fix rate, effectiveness, severity, reopen rate, escape rate, average fix time, type distribution, and convergence trend—to help teams assess and improve product quality.
This article introduces the architecture of smart speaker voice interaction systems, covering wake‑word activation, automatic speech recognition (ASR), natural language understanding (NLU), skill processing, text‑to‑speech synthesis (TTS), and the key performance and testing metrics for each component.
This article examines common software testing antipatterns, explains why testing the wrong functionality and over‑focusing on code coverage are misguided, introduces a mental model for prioritizing critical, core, and other code, and presents practical metrics and guidelines for effective, behavior‑driven testing.
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