Logical Decisions - Classweb

Assume you have decided that you will measure cost by the price
of each truck and that you can define Performance by two
measures -- Power (with units of horsepower) and Fuel Economy
(in miles per gallon). Assume that you can describe the styling of
each truck with one of the following labels -- Attractive, Muscular,
Nondescript, Mediocre or Ugly.
Finally, assume that you have collected the following data on your
trucks:
Table T-1
Fuel
Name Economy Power Price Styling
(mpg) (hp) ($) (labels)
Coyote 23 109 15,000 Muscular
Mountain Lion 21 130 17,500 Mediocre
Wolf 16 175 23,000 Nondescript
With this information you can define these measures in LDW. We
will do this in the goals hierarchy view.
First we will define the price measure, which is directly under the
"Best Truck" goal. Since the "New Measure" measure is in this
position, we will just modify it. Here’s how:
1. Double click on the oval for "New Measure" to get its
properties dialog box.
2. Change the “Name” field from “New Measure” to
“Price.”
3. Click the “Scale” tab where we will define the range
and units for Price.
4. Change the “Units” field from “new units” to “dollars.”
Next you will define the range for the Price measure based on the
range in prices for the three alternatives.
Since a less expensive truck is more desirable, the most preferred
alternative from a price standpoint is the Coyote at $15,000. The
least preferred alternative is the Wolf at $23,000. We will use these
two extremes to define the range of the Price measure. The range
will go from a most preferred level of $15,000 to a least preferred
level of $23,000. Tell this to LDW:
4-6 Section 4 -- Introductory Tutorial