●Distribution diagram
A “distribution diagram” represents the number of elements that fall into
each quadrant to show their distribution.
For example, this graph charts the profitability of products against their
sales continuity.
Profitability
Product
C
Product
D
Product
E
Continuity
Product
A
Product
B
Management science method
“Management science method” is the
use of arithmetic methods to solve
problems as they apply to business.
Time-series analysis can be used to
predict future sales by analyzing past
product sales trends, while portfolio
analysis and investment-calculation
models can be used to make decisions.
●Portfolio
A “portfolio” is a graph that represents distributions.
For example, in the graph shown here, each area visually represents sales
volume and market share.
Sales volume
Reference
Area B
Area C
Area A
Area D
Market share
●Gantt chart
A “Gantt chart” indicates by horizontal bars to represent work schedules
and results. The horizontal axis is marked to indicate hours, days, months,
etc., and individual tasks or projects are stacked vertically.
1
Plan
Design
Operation
25
2
3
4
5
6
7
8
(week )