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Quality Advisor

Practitioner guides for SPC, capability, measurement, and quality management.

Statistical process control, process capability, measurement systems analysis, control chart interpretation, and quality management — depth references for plant engineers, quality managers, and Six Sigma practitioners.

Browse by topic

Statistical Process Control (SPC)

Control charts, capability indices, sensitivity tests, real-time monitoring.

Process Capability

Cp, Cpk, Cpm, Pp, Ppk — when to use which index, how to interpret results.

Control Chart Interpretation

Western Electric rules, pattern recognition, trends, special-cause variation.

Measurement Systems Analysis

Gage R&R, calibration, MSA studies, stability and linearity.

Quality Management

QMS principles, ISO 9000, quality metrics, digital transformation.

Glossary

250+ defined SPC and quality management terms.

Top resources

Ordered by historical traffic — the most-referenced guides first.

All Quality Advisor articles

What customers say

“Enact helps us quickly respond to quality issues, which saves us money.”
Jegadish Gunasagaran Quality Assurance Manager, Bakery on Main
““What sets Ben & Jerry’s apart from our competitors is not only our insistence on high-quality ingredients, but also the extra and unique flavours we use to create a euphoric customer experience. Ensuring the final product reflects the passion and quality that we put into each pint required a quality solution that emphasized the same attention to details that we do.””
Melissa Corcia, Quality Manager, Ben & Jerry’s
““By utilizing InfinityQS® ProFicient™ to implement SPC and Six Sigma best practices across our manufacturing processes, Ben & Jerry’s will continue to identify opportunities for cost savings and ensure the highest level of customer satisfaction. The result is the perfect pint for our customers.””
Nina King, Quality Supervisor, Ben & Jerry’s

Advantive products for quality advisor

Purpose-built software backing the practices in this hub.

InfinityQS Top-rated SPC software trusted by leading manufacturers — including ProFicient (on-premise) and Enact (cloud). WinSPC Real-time statistical process control software for plant-floor quality monitoring.