ITEE ITEE-1 | Page 32

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 26