Logical Decisions - Classweb

If you enter a small k greater than the original one, LDW will
compute a big K less then zero, showing constructive interaction.
You must enter a small k between zero and one. Sometimes it is
possible to enter a small k that is inconsistent with the assessed
tradeoffs. Here, LDW will adjust the small k until it achieves
consistency.
Defining interactions with the direct entry method. Finally, if
you are using the direct entry weight assessment method, you can
define interactions when you define the weights for the active
members. The small ks you enter must be between zero and one.
The sum of the small ks defines the type of interaction:
! Small ks that sum to one imply an additive MUF
formula.
! Small ks that sum to less than one imply a multiplicative
MUF formula with destructive interaction.
! Small ks that sum to more than one imply a
multiplicative MUF formula with constructive
interaction.
Note that if you want to use the direct entry weight assessment
method to define interactions, you must have the "Interactions
Computed Directly" interaction assessment method selected.
Ranking Alternatives
An analysis done with LDW results in a ranking of the
alternatives. A ranking of the alternatives can be done for any
measure or goal. You get the overall ranking by doing a ranking
for the Overall goal.
You can do a ranking at any time. If you have not assessed a SUF
for a measure, LDW assumes a linear (straight line) SUF. If you
have not assessed any weights, LDW assumes that all measures
are equally important (have equal weights).
Figure 8-17 on page 8-22 shows an example of the ranking of
alternatives.
9-64 Section 9 -- In Depth