Focused Improvement: 7 Quality Control Tools
This training course aims to give the you the skills to use the different tools, plot out the root causes of these problems and derive the actions needed to effect improvement.
Kaoru Ishikawa identified the 7 Basic Tools which he believed could be used to improve 90 % of a company’s problems. Ishikawa also believed that these tools should be taught to any member of the organization and to use them to solve the majority of quality related issues. The tools are called basic because they can be used by people with little formal training in statistics.
- How to use the 7 QC Tools in their work
- How to use the 7 QC Tools in Ms Excel
- Check Sheet – Used for Data Gathering
- The Charts (Flow, Pie, and Radar) – used to investigate where improvements can be made.
- Pareto Diagram – Used to show clearly which problems or factors have the greatest impact and hence should be dealt with first.
- Cause and Effect Chart (Ishikawa or Fish Bone Charts) – used to discover the root cause of problems in processes. Use in conjunction with the 5 whys to quickly bring out the possible root causes of problems.
- Scatter Diagrams – Use to verify that you have discovered the root cause of a problem. The chart demonstrates a causality between two factors, ie a change in (x) will cause a direct change in (y). Also used graphically to indicate the problems areas in a product.
- Histograms – Used to investigate the distribution of results around an expected mean frequency. They are also used to indicate if a machine or process is capable of producing to the customers specification limits.
- Run Charts and Control Charts – Run Charts are used when to detect trends or patterns over time. Control charts are used to verify if a process is within statistical control.
- The 5 Whys- Used to dig down to the probable root cause of a problem by asking Why five times.
- Affinity Diagram – Used to show connections between factors that are related to an event and provides a good basis for creating Cause and Effect Diagrams.