Pareto diagram

Pareto diagram

[pä′re·tō ‚di·ə‚gram]
(industrial engineering)
A histogram of defects or quality problems, classified by type and sorted in the order of descending frequency, that is used to focus on the major sources of problems.
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(B) Pareto Diagram. Pareto analysis is a technique for focusing the attention on the most important problem areas.
Using the Pareto diagram and FMEA (Failure Mode and Effects Analysis) to identify key defects in a product.
Pareto diagram is based on the phenomenon of relatively few causes explaining the majority of effects.
Figure 1 shows the categories of laboratory-test-related incidents in a Pareto diagram.
Key words:- Failure mode and effect analysis (FMEA), Cause and Effect Diagram, Pareto Diagram, Hazard Analysis and Critical Control Points (HACCP), preliminary hazard analysis
In this phase critical analysis is carried out with the help of certain tools such as Fishbone diagram (Cause and Effect diagram) and Pareto diagram. Fishbone diagrams are used to identify and systematically list the different root causes that can be attributed to a problem.
Sigma uses the base tools to improve the quality of products and processes as MSA (Measurement System Analysis), IPO Diagram (Input-process-output), CE (Cause-and-effect diagram), Histogram, Pareto diagram, DMAIC (Define, Measure, Analyze, Improve, Control) , Run chart, Control chart, Scatter diagram, Regression Analysis, DOE (Desing of Experiments), FMEA (Failure Mode and effect analysis), SOP (Standard Operating Procedure), QFD (Quality Function Deployment.
Each attribute has now been assigned a number for importance that becomes the basis for a Pareto diagram showing how the supplier should focus the offering (FIGURE 1).
There is no metric for the space in which a Pareto diagram is drawn.
For example, the first and second series of charts induced the TQM team to develop a Pareto diagram that showed, by test, the turnaround time in excess of the 30-minute standard.
A Pareto diagram shows the relative influence of a small number of factors that affect the quality of a product or service.
bars and lines to make a Pareto Diagram. Individual lines can be solid, dashed or dotted: a feature long needed with spreadsheet graphs.