πŸ“– Articles

Practical techniques Β· Tool applications Β· Pitfall guides Β· Case studies Β· Data analysis Β· Improvement methods Β· Audit readiness

Concise, actionable knowledge for solving real problems at work

πŸ“„ 620 articles in total πŸ“… Continuously updated πŸ”₯ Pinned first, then sorted by rating, views and publish date
Advanced Quality & R&D Quality Β· Process Development & Approval Β· PPAP & Process Approval

PPAP File Package Complete, but the Production Line Can't Keep Up? β€”β€” Five Steps for Capacity Verification (Run@Rate)

A certain automotive parts company submitted a PPAP, and the file package passed on the first attempt: 18 items were com…

Advanced Quality & R&D Quality Β· Design Quality Β· Special Characteristics & Drawing Specifications

The CC on the Drawing, but the Operator Doesn't Know β€” A Five-Step Method for Implementing Special Characteristics on the Shop Floor

1. The Question at the Audit Site A certain automotive parts company was undergoing a customer process audit. The audito…

Quality Management System Β· System Framework & Standards Β· ISO 9001 Core Clauses Interpretation

Deep Interpretation of ISO9001 Clauses (22) | 8.5.3 Customer or External Supplier Property + 8.5.4 Protection

1. Key Points of the Clauses 8.5.3 Customer or External Supplier Property : The organization should take care of custome…

Six Sigma & Statistical Quality Β· Statistical Process Control Β· Process Capability Cpk / Ppk

QE Skill Enhancement (10) | What's the Difference Between Cp/Cpk and Pp/Ppk: Correct Interpretation of Short-term and Long-term Capability

A precision machining company supplies drive shafts to a new energy client. During the client's audit, a process capabil…

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

QM Management Depth (10) | COPQ: How to Calculate, Who to Present It To, and What Level of Granularity to Use

A certain electronics manufacturing company, with annual revenue of 860 million yuan, operates three product linesβ€”indus…

Quality Management System Β· Documentation, Records & Knowledge Β· Documented Information Structure

ISO9001 System Document Package (42) | Internal Audit Implementation Work Instruction (Internal Auditor Manual)

Document Number : WI QA 42 Document Level : Level 3 Document Work Instruction/Internal Auditor Manual Corresponding Clau…

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

Random Trial Sequencing Can Lead to False Significant Factors? β€”β€” Five Steps for Randomization, Blocking, and Center Points in DOE

1. An Experiment That Reached the Opposite Conclusion A die casting company conducted a two level, three factor experime…

Continuous Improvement & Problem Solving Β· Structured Problem Solving Β· 8D & Recurrence Prevention

"Operator Negligence" Again? β€”β€” A Five-Step Method for Identifying Human Factors and Upgrading Systems

1. Three 8D Reports, the Same "Root Cause" A certain electronic connector company conducted 14 8D reports in the second …

Quality Management System Β· System Framework & Standards Β· ISO 9001 Core Clauses Interpretation

In-depth Interpretation of ISO9001 Clauses (21) | 8.5.1 Control of Production and Service Provision + 8.5.2 Identification and Traceability

1. Key Points of the Clauses 8.5.1 Control of Production and Service Provision : The organization shall carry out produc…

Six Sigma & Statistical Quality Β· Measurement & Inspection Β· MSA & Traceability

Advancing QE Skills (9) | Measurement System Analysis for Destructive Testing: Nested Design and Alternatives

A modified plastic company supplies interior components to an original equipment manufacturer OEM . Tensile strength is …

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

QM Management Depth (9) | Four-Class Calculation Method for Quality Costs: Prevention, Appraisal, Internal Failure, External Failure

A certain automotive parts company, with annual revenue of 1.2 billion yuan, supplies two original equipment manufacture…

Quality Management System Β· Documentation, Records & Knowledge Β· Documented Information Structure

ISO9001 System Document Package (41) | Customer Complaint Handling Work Instruction

Document Number : WI QA 41 Document Level : Level 3 Document Work Instruction Corresponding Clause : ISO 9001:2015 8.2.1…