Focuses on efforts or the problems that have the greatest potential for improvement by showing relative frequency and/or size in a descending bar graph. Based on the proven Pareto principle: 20% of the sources cause 80% of any problems.
a bar chart that plots failure modes from left to right - largest cause of failure to least cause of failure. A tool for identifying the most significant problems to help prioritize improvement efforts.
A chart used to graphically summarise and display the relative importance of the differences between groups of data
A bar chart that displays by frequency, in descending order, the most important defects. This chart-type is used to identify if the Pareto principle is evident in the data. Essentially, the Pareto principle states that 80% of the impact of the problem will show up in 20% of the causes. (Originally stated: 80% of the wealth is owned by 20% of the people.) Proper use of this chart will have the cumulative percentage on a second y-axis (to the right of the chart). If the Pareto principle is evident, about 20% of the categories on the far left will have about 80% of the impact on the problem.