Reference Material "Basic Knowledge of QC Activities"

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last updated：Oct 24, 2025

Explaining the concepts and key points for continuously working on quality improvement, along with insights from production engineers.

This document explains "QC activities," which contribute to the continuous improvement of product and service quality. It introduces the purpose and benefits of QC activities, the types and characteristics of tools and diagrams used, as well as key points when engaging in QC circle activities. It also covers quality management and operational efficiency methods implemented in production sites, along with the "5S activities" that lead to the continuation of these efforts. 【Contents】 1. What are QC activities? 2. The 7 QC tools 3. Learning quality improvement from the Toyota Production System 4. What are QC circle activities? 5. Why-why analysis and visual management 6. Poka-yoke and standard work 7. 5S activities and QC activities *The document can be viewed immediately via "PDF download."

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【Table of Contents (Excerpt)】 ■History of Quality Control　　　　　■Challenges of QC Circle Activities ■Seven QC Tools and New Seven QC Tools　 ■Characteristics and Usage of the Seven QC Tools ■Limitations of the Seven QC Tools　　　　　■System to Prevent Defective Products from Moving to the Next Process ■What is a QC Circle　　　　　 ■Key Points for Utilizing QC Circles ■Why-Why Analysis　　　　　　 ■Poka-Yoke ■Three Elements of Standard Work　　　　　■Tips for Sustaining QC Activities