Quality Tools

Quality Tools

1. Pareto Chart

   • Prioritization
     • Ranking problems by importance.
   • 80/20 Rule
     • A few causes may produce most effects.
   • Frequency
     • Number of times a problem occurs.
   • Cumulative Percentage
     • Running total of percentages.
   • Bars and Line
     • Display frequencies and accumulated percentages.

2. Quality Circles

   • Participation
     • Employees contribute ideas.
   • Communication
     • Sharing information and opinions.
   • Problem-Solving
     • Finding practical solutions.
   • Continuous Improvement
     • Making regular process improvements.
   • Teamwork
     • Working together toward a common goal.

3. Histogram

   • Frequency
     • Number of observations in each interval.
   • Intervals
     • Ranges used to group data.
   • Variation
     • Differences between measurements.
   • Patterns
     • Shapes or trends found in the data.
   • Distribution
     • How values are spread.

4. Poka-Yoke

   • Zero Defects
     • Goal of eliminating product defects.
   • Safety
     • Reducing risks during operations.
   • Simple Devices
     • Guides, sensors, and templates.
   • Error Prevention
     • Stopping mistakes before they occur.
   • Detection
     • Identifying errors immediately.

5. Deming Cycle

   • Plan
     • Identify problems and set objectives.
   • Do
     • Implement the proposed solution.
   • Act
     • Standardize or adjust the improvement.
   • Standardization
     • Maintaining effective methods.
   • Check
     • Measure and evaluate results.