7 Quality Tools

The seven basic Quality tools are:

1. Check sheet.
2. Control chart.
3. Stratification (alternately, flow chart or run chart)
4. Pareto chart.
5. Histogram.
6. Cause-and-effect diagram (also known as the "fishbone" or Ishikawa diagram)
7. Scatter diagram.

Histogram

Histogram:
It is a tool for showing the central tendency, statistical distribution and dispersion of a given set of measurements that will be shown on a vertical bar chart . It is useful when we want to know which categories have a larger frequency. We can use it in many applications such as- defining the resources that will perform the project work by using Resource Histogram which shown below.

Accuracy Precision