In many manufacturing and industrial quality management systems, inspections are commonly grouped into three fundamental categories based on production stages: 1. Incoming quality control (IQC) inspection, checking raw materials upon delivery; 2. In-process quality control (IPQC) inspection, monitoring products during active assembly; 3. Outgoing quality control (OQC) or final inspection, verifying finished goods before they leave the factory to ensure they meet all customer specifications and safety standards.
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