Narrow down items to those of the greatest
importance
(e.g., items that have potential for
remarkable
improvement).
Example: Select items by guess;
Engineers and operators who work on
the shop
floor all the time know what should
be improved.
But, their views are not always the
best.
Example: Compare numerical values;
| To show in "unit consumption" is
effective. |
Investigation data covering a certain
period
of time
are necessary.
Arrange the values in descending order.
Quantitative comparison makes it possible
to pick out the best items.
|
