Contact

QC Seven Tools (Old Seven)

Continuous Improvement & Problem Solving · Structured Problem Solving · Below is the published content, sorted by rating, views and update time

Articles

Total 17 articles, 8 per page

Introduction to the Series
Introduction to the Series The Seven QC Tools — check sheets, stratification, Pareto charts, cause and effect diagrams f…
★★★☆☆ · 👁 5872 · 5/3/2026
In-Depth Interpretation of the Seven QC Tools · Histogram
Introduction Relying solely on the average can mislead you twice. Two teams have an average defect rate of 3%, but one t…
★★★☆☆ · 👁 1122 · 5/3/2026
In-Depth Analysis of the Seven QC Tools · Check Sheet
Introduction "The simplest tool is often the easiest to misuse." The Check Sheet is the simplest of the Seven QC Tools. …
★★★☆☆ · 👁 1053 · 5/3/2026
In-Depth Interpretation of the Seven QC Tools · Pareto Chart
Introduction Italian economist Vilfredo Pareto discovered in 1906 that 80% of the land in Italy was owned by 20% of the …
★★★☆☆ · 👁 371 · 5/3/2026
In-Depth Interpretation of the Seven QC Tools · Stratification
Introduction "Data does not lie, but those who only look at summary data may deceive themselves." Stratification — the m…
★★★☆☆ · 👁 351 · 5/3/2026
In-depth Interpretation of the Seven QC Tools · Scatter Diagram
Introduction "I think there is a relationship" and "Data proves there is a relationship" are two different things. The s…
★★★☆☆ · 👁 321 · 5/3/2026
In-Depth Interpretation of the Seven QC Tools · Control Chart
Introduction "Every process has variation—the key is whether you can distinguish: is this normal variation, or is there …
★★★☆☆ · 👁 312 · 5/3/2026
Practical Case Study of the Seven QC Tools: A Complete Path from Workshop Data to Improvement Breakthrough
1. Introduction: A Real Improvement Story In March 2025, a certain automotive parts company, Huacheng Precision a pseudo…
★★★☆☆ · 👁 157 · 7/22/2026

Resources (PPT, etc.)

Total 7 sets

[QC Seven Tools] QC Seven Tools In Depth · Control Chart (Training)
★★★★★
Control chart selection, out-of-control rules, and reaction plans — common vs special cause distinction.
👁 272 · 📥 191
[QC Seven Tools] QC Seven Tools In Depth · Histogram (Training)
★★★★★
Histograms and process distribution: bin width, skew, bimodal shapes, and comparison to specification limits.
👁 249 · 📥 175
[QC Seven Tools] QC Seven Tools In Depth · Scatter Diagram (Training)
★★★★★
Scatter plot reading and correlation interpretation, bridging to hypothesis testing thinking.
👁 236 · 📥 186
[QC Seven Tools] QC Seven Tools In Depth · Fishbone Diagram (Training)
★★★★★
Fishbone (cause-and-effect) structure and brainstorming facilitation using 5M1E to avoid missing factors.
👁 263 · 📥 175
[QC Seven Tools] QC Seven Tools In Depth · Pareto Chart (Training)
★★★★★
Pareto principles, sorting, and cumulative curve reading — turn the "vital few" into improvement projects.
👁 265 · 📥 174
[QC Seven Tools] QC Seven Tools In Depth · Stratification (Training)
★★★★★
Stratification concepts and charts — split data by shift, machine, supplier, and other dimensions before prioritizing issues.
👁 254 · 📥 197
[QC Seven Tools] QC Seven Tools In Depth · Check Sheet (Training)
★★★★★
Design usable check sheets: what to collect, who records, when to stop — with field definitions, stratification rules, and classroom drills.
👁 262 · 📥 198

Tool Templates

Total 0 items

No tool templates under this node yet
Contact: contact@qtank.org
QTank is an independent knowledge-sharing platform publishing quality management articles, templates and resources for learning purposes. All content is provided for general information and does not represent the position of any organization.
© 2026 QTank. All rights reserved.