Pro QC has provided definitions to some of the more frequently used quality terms.

Success is not an accident.

- Robbins -

Accept / Reject Criteria	Acceptable Quality Level (AQL)	Acceptance Number	Acceptance Sampling Plan
Adequacy of Standards	Affinity Diagramming	Agile Manufacturing	Analysis of Means (ANOM)
Analysis of Variance (ANOVA)	AOQ	Audit (Quality)	Average Run Length (ARL)
Batch	Bathtub Curve	Bimodal Distribution	Calibration
Capability Process Index (Cp)	Causal Analysis	Continuous Sampling Plan	Control Chart
Control Chart Factor	Cost of Poor Quality (COPQ)	Cost of Quality (COQ)	Critical Defect
Defect	Demerit Chart	Design of experiments (DOE)	Double sampling
Failure Mode Effects Analysis (FMEA)	Inspection	ISO 9000 Standards	ISO 9001
ISO 9002	ISO 9003	Lot Tolerance Percent Defective (LTPD)	Lower Control Limit (LCL)
Minimum Acceptable Quality	Nondestructive Testing and Evaluation (NDE or NDT)	Number of Defective Units Chart (np Chart)	Pareto Chart
Process Quality Audit	Q9000 Series	Quality Control	Quality Engineering
Random Sampling	Reliability Engineering	Representative Sampling	Sample
Statistical Process Control	Statistical Quality Control	Taguchi Methods	Variation