Statistical Process Control
SPCA method of quality control that uses statistical techniques to monitor and control manufacturing processes. SPC employs control charts to detect variations from normal operating conditions, enabling operators to identify and correct problems before they result in defective products.
RELATED TERMS
Quality Management System
A formalized system that documents processes, procedures, and responsibilities for achieving quality objectives and meeting regulatory requirements. QMS provides a framework for continuous improvement, ensures consistent product quality, and helps organizations achieve certifications like ISO 9001.
Six Sigma
A data-driven methodology for eliminating defects and reducing process variation using statistical analysis and the DMAIC framework (Define, Measure, Analyze, Improve, Control). Six Sigma aims for processes that produce no more than 3.4 defects per million opportunities, representing near-perfect quality.
First Pass Yield
The percentage of units that pass quality inspection without requiring rework, repair, or scrapping on the first attempt. First pass yield measures process capability and quality, with higher yields indicating more efficient operations and lower costs of poor quality.
Continuous Improvement
An ongoing effort to incrementally improve products, processes, and services over time through small, sustainable changes. Continuous improvement is a core principle of lean manufacturing and quality management, engaging all employees in identifying and implementing improvements.