While most companies are seeking six sigma training and lean training, in practice most of what will be needed initially is just a basic knowledge and experience with the 7 Quality Tools, also known as the 7 QC Tools.
The 7 Quality Tools are:
- Scatter Plot: Graphs pairs of numerical data, one variable on each axis, to look for a relationship.
- Cause and Effect Diagram: (also called Ishikawa or fishbone chart) and Identifies many possible causes for an effect or problem and sorts ideas into useful categories.
- Pareto Chart: Shows on a bar graph which factors are more significant. It is a sorted Histogram, but focuses on saperation in the data.
- Check Sheet: A structured, prepared form for collecting and analyzing data; a generic tool that can be adapted for a wide variety of purposes.
- Histogram: The most commonly used graph for showing frequency distributions, or how often each different value in a set of data occurs.
- Control Charts: Graphs used to study how a process changes over time.
- Flow Chart: Shows a picture of a process in a visual representation – a process map.
In fact, I’d argue that for even the most experienced practitioners of process improvement, the tools that are used most are probably one of the above.
Below is a movie that shows an overview of the 7 Quality Tools and how they might be used.
What is your experience?