Before and After in which the "new Pareto" bars are drawn side by side with the original Pareto, showing the effect of a change. It can be drawn as one chart or two separate charts.
Change the Source of Data in which data is collected on the same problem but from different sources and shown in side-by-side Pareto Charts.
Change Measurement Scale in which the same categories are used but measured differently. Typically "cost" and "frequency" are altered (number of customer complaints; cost of rectifying each complaint).
