Operating Characteristic Curve
Meaning ~ Graphical representation shows the batch acceptance probability across various defect levels to help buyers select sampling plans that balance cost and risk.
Defect Leakage
Meaning
Performance metric measuring the ratio of errors caught at the intended phase versus those detected later in the lifecycle. Low defect leakage indicates that production lines are filtering out errors close to their source rather than letting them travel downstream. This value helps managers pinpoint exactly where the quality wall is failing inside the complex facility.
Process Drain
Resources are wasted whenever an error survives an assembly station and accumulates further labor and parts. Monitoring defect leakage ensures that expensive sub-assemblies are not mounted onto a fundamentally broken chassis. High rates signal that inspection stations are poorly positioned or lack the correct diagnostic tools.
Incremental Expense
Remediation costs grow by powers of ten for every step a flaw moves toward the warehouse door. A high defect leakage score alerts the supervisor that the current testing frequency is too loose for the current machinery speed. Investing in earlier detection loops protects the bottom line from late stage waste.
Cumulative Impact
Total throughput suffers when rework happens at the final exit point rather than on the line. Patterns in these events show whether a tool is failing or a standard has been misunderstood by the operators. Keeping this rate under target keeps the factory lean and competitive.