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📄 681 articles in total 📅 Continuously updated 🔥 Pinned first, then sorted by rating, views and publish date
Business & Enterprise Operations · Cost & Resource Management · Cost of Quality (COQ)

Systematic Practical Guide to Cost of Quality (COQ) —— From Conceptual Understanding to Cost Reduction and Efficiency Improvement

Quality is free, but poor quality is expensive. —— Philip Crosby Cost of Quality COQ is one of the most central economic…

Business & Enterprise Operations · Cost & Resource Management · Cost of Quality (COQ)

Quality Cost (COQ): Four Categories of Expenses to Help You Understand the "Quality Account"

Quality is not free, but low quality is more expensive. One table to understand the four pockets of quality cost. Qualit…

People, Culture & Leadership · Competency & Development · Position Competency Model

How to Be an Excellent Quality Engineer (QE)

Quality Engineer QE — the builder of the quality management system QMS , the resolver of quality issues, and the driver …

Business & Enterprise Operations · Cost & Resource Management · Cost of Quality (COQ)

Quality Cost Management

<div class="section" <h2 1. Overview</h2 <p Quality cost management is a core component of the quality management system…

Six Sigma & Statistical Quality · Experimentation & Robustness · DOE Basics & Advanced

Advancing QE Skills (38) | Analysis of Variance (ANOVA): Multi-Level Comparison and Interaction Effects

A manufacturing company's welding line was experiencing excessive spatter. The process engineer planned two actions: red…

Quality Management System · System Framework & Standards · IATF 16949 / AS9100 Industry System Highlights

IATF16949 in Practice (29) | Customer Communication and Engineering Change Notification: 8.2.3.1 Communication Matrix, Notification Lead Time Parameters, and Four-Level Risk Classification for Unnotified Changes

<! summary: A batch of parts was dimensionally and functionally qualified but was returned in its entirety by the custom…

Business & Enterprise Operations · Cost & Resource Management · Cost of Quality (COQ)

Purchase Price Reduced by 5%, Total Cost Increased by 8% —— Five-Step Method for Quality Cost Linkage Calculation in Cost Reduction Plans

At a cost reduction review meeting, the purchasing department submitted a switching plan for an injection molded part: t…

Process & Operations Digitalization · Process Digitalization · BPM & workflow orchestration

What's the Difference Between a Process Owner and a Department Manager? — Who Should Be Responsible for the Cycle Time of a Process, and Three Common Mistakes in Appointments

A manufacturing company with 3,000 employees appointed nine process owners in early 2025: from order to delivery, from p…

Quality Management System · System Framework & Standards · IATF 16949 / AS9100 Industry System Highlights

IATF16949 Practical Application (28) | Additional Management Review Inputs: 9.3.2.1 Data Sources, Criteria, and Decision Tracking Table

1. Scenario: Quality Department Can Only Provide Seven of the Twelve Inputs A certain automotive parts company is underg…

Process & Operations Digitalization · Process Digitalization · End-to-end process redesign

Why Do End-to-End Process Reengineering Projects Fail? —— Three Structural Reasons and Four Pre-Project Thresholds

A manufacturing company's quote to cash cycle is 42 days, compared to the industry benchmark of 18 days. To address this…

Six Sigma & Statistical Quality · Six Sigma Methodology · DMAIC Project Path

What is the Relationship Between Six Sigma, TQM, Lean, and ISO 9001? —— The Lineage, Boundaries, and Integration of Four Quality Movements

<! summary: These four are not four stages, nor are they a choice of four. ISO 9001 is a qualification threshold, only p…

Industry & Scenario Practices · Industry Focus · Automotive, Medical, Electronics, Food, Equipment Clauses & Practices

IATF16949 Practical Application (27) | Organizational Knowledge Retention: 12-Field Knowledge Asset Register, Review Failure Rules, and 7.1.6 Five-Question Evidence Collection

During the external audit at clause 7.1.6, the auditor asked the technical management department to "bring out the organ…