Pareto chart
Pareto chart:
According to Pareto principle 80 percent from 20 percent of the results is due cause. In
other words, although the existing problems, there are so many reasons,
but few are important and will be suitable for those who cause the
greatest effect on specific problems will affect Pareto chart is a bar
chart that causes problems there compared with its frequency will, in the Pareto chart of the different aspects can be looked at as an issue (awarded 1379)
How Pareto charts:
Pareto charts for the following steps are necessary:
First stage: First, can specify which issues are and how to address the Vdadh information should be collected.
A - Decide what issues you want addressed and resolved, Mvardnqs example, monetary losses, accidents can happen.
B
- make clear what data is required to be collected and how they use
classification, for example regarding the failure cases, the work
process, machine, worker and method Ghyrmhm Vjzyy cases under the other
categories do.
C - Data collection period Hove specify the collection.
Second stage: a tab control''good''data recording sheet design.
Step Three: After Mark and recorded cases of the control sheet joins frequency gain.
Step
Four: A frequency distribution table, including all items listed, many
columns, cumulative frequency, cumulative frequency and frequency can
provide.
Step five: the table in terms of distribution, respectively Ghyrnzvly number order. It should be noted that the other, or the last row in Table Ghyrv place. Nbaydkhyly above case is larger than other cases.
Sixth stage: a horizontal axis and draw two vertical axis:
A - horizontal axis: the axis equal to the number of intervals containing all instances, your classification.
B - left vertical axis: the axis of zero to the total n''''calibrate your data.
C - right vertical axis: the axis of zero to 100 percent''use''dial.
Step Seven: draw a column chart.
Step
Eight: cumulative frequency curve, draw the Pareto curve for the
cumulative value of this work at the top right column of each class with
a point and then highlights the areas connected to each other on.
Ninth stage: all the information necessary to register on the chart:
A - Chart information including title, single user name drawn diagram, cases of meaning and ...
B - The data included information about the period, where data collection, the subject, the total data and ...
با تشکر از کسانی که با نظرات و انتقادهای خود باعث بالا رفتن کیفیت وبلاگ می شوند.