Quality Management Cheat Sheet

The core ideas of Quality Management distilled into a single, scannable reference — perfect for review or quick lookup.

PiqCue — piqcue.com/quality-management/cheatsheet

Quick Reference

Total Quality Management (TQM)

A management philosophy that integrates all organizational functions to focus on meeting customer needs and organizational objectives through continuous improvement of every process.

Six Sigma

A data-driven methodology that seeks to reduce defects and variation in processes to no more than 3.4 defects per million opportunities, using statistical tools and the DMAIC framework.

DMAIC (Define, Measure, Analyze, Improve, Control)

A structured five-phase problem-solving methodology used in Six Sigma to improve existing processes by identifying root causes of defects and implementing sustainable solutions.

Continuous Improvement (Kaizen)

A philosophy originating in Japan that emphasizes small, incremental, ongoing improvements to processes, products, and services, involving all employees from top management to frontline workers.

ISO 9001

An international standard that specifies requirements for a quality management system (QMS), providing a framework for organizations to consistently deliver products and services that meet customer and regulatory requirements.

Statistical Process Control (SPC)

The use of statistical methods, particularly control charts, to monitor and control a process to ensure it operates at its full potential and produces conforming output.

Cost of Quality (CoQ)

A methodology that quantifies the total cost of quality-related efforts, including prevention costs, appraisal costs, internal failure costs, and external failure costs, to justify investment in quality improvement.

Root Cause Analysis

A systematic approach to identifying the fundamental underlying cause of a problem or defect, rather than merely addressing symptoms, using tools such as the 5 Whys, fishbone diagrams, and fault tree analysis.

Plan-Do-Check-Act (PDCA) Cycle

A four-step iterative management method developed by Walter Shewhart and popularized by W. Edwards Deming, used for the continuous improvement of processes and products.

Voice of the Customer (VoC)

A systematic process of capturing customer requirements, expectations, preferences, and feedback to drive product design, service delivery, and quality improvement activities.

Key Terms at a Glance

Acceptance Sampling:A statistical method of inspecting a random sample from a lot to decide whether to accept or reject the entire lot.

Appraisal Costs:Costs associated with measuring, evaluating, and auditing products or services to ensure conformance to quality standards.

Benchmarking:Comparing organizational processes and performance metrics to industry bests or best practices from other industries.

Continuous Improvement:An ongoing effort to improve products, services, or processes incrementally or through breakthrough improvements.

Control Chart:A statistical tool that plots data over time with upper and lower control limits to monitor process stability.

Corrective Action:Action taken to eliminate the root cause of a detected nonconformity or undesirable situation to prevent recurrence.

Cost of Quality:The total cost incurred to prevent defects, appraise quality, and address internal and external failures.

DMAIC:A five-phase Six Sigma methodology: Define, Measure, Analyze, Improve, Control, used to improve existing processes.

External Failure Costs:Costs arising from defects found after delivery to the customer, including warranty claims, returns, and reputation damage.

FMEA:Failure Mode and Effects Analysis. A proactive method to identify potential failure modes, their causes, and effects to prioritize risk mitigation.

Gemba:A Japanese term meaning 'the real place,' referring to the location where value-creating work actually occurs.

Internal Failure Costs:Costs resulting from defects found before delivery to the customer, such as scrap, rework, and reinspection.

ISO 9001:The international standard that specifies requirements for a quality management system focused on customer satisfaction and continual improvement.

Kaizen:A Japanese philosophy of continuous improvement through small, incremental changes involving all employees.

Lean Manufacturing:A systematic method for waste minimization within a manufacturing system without sacrificing productivity, based on the Toyota Production System.

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