2
Job analysis and operational planning
Tables and charts are used to analyze data, and making graphs can help to
improve business processes.
The methods used for job analysis and operational planning are summarized below.
Expressing the order of tasks and number of days
Arrow diagram
Expressing distributions
Scatter diagram, histogram
Comparing and balancing multiple elements
Radar chart
Expressing the status of a process
Control chart
Expressing big/small relationships
Bar chart
Expressing proportions of a whole
Pie chart
Expressing trends over time
Line chart
Expressing predictions
Regression analysis
●Pareto chart
A “Pareto chart” shows total values for multiple elements arranged in decreasing order as a bar chart, overlaid with a line chart showing cumulative
values for all elements.
For example, in the chart shown here, household appliances are arranged
by sales volumes, running from personal computers down to washing machines.
Unit sales
Corporate and legal affairs
Pareto chart, ABC analysis
Chapter 1
Expressing the impact of a job
Cumulative unit sales
60
140
50
120
40
100
Cumulative values
of bars
30
20
80
60
40
Washing machine
Refrigerator
Television
0
Telephone
0
Air conditioner
20
Personal computer
10
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