Logical Decisions - Classweb

levels for the two members in the tradeoff for the alternatives A
and B. After you have entered the tradeoff, LDW will check to
make sure it makes sense and can be used to compute the weights
for the two members. Then LDW will redraw the tradeoff and
ask you to confirm it just as it does for tradeoffs entered
graphically.
Other Options. The two other options in the Tradeoff menu --
Tradeoff::Equal and Tradeoff::Cancel simply mimic the functions
of the "Equal" and "Cancel" buttons in the tradeoff assessment
window. The "Equal" button's function has already been
described. The "Cancel" button returns you to the tradeoff
assessment dialog box without saving the current tradeoff.
Assessing Additional Tradeoffs. After you finish assessing a
tradeoff, LDW will add it to the list titled "Previous Tradeoffs" in
the tradeoff assessment dialog box.
To complete the tradeoff assessments for the goal, you will need
to assess as many tradeoffs as there are active members (less one).
If the goal's MUF has three members, you will need to assess two
tradeoffs.
To assess more tradeoffs, just select two more members (one from
each list) and click the "Assess" button to begin the assessment for
the next tradeoff. Continue this process until you see "No new
tradeoffs needed" in the "First Member:" list. Now you can click
the "Done" button to return to the assess weights dialog box.
Modifying Tradeoffs. You can modify a tradeoff you have
already assessed by clicking its name in the list labeled "Previous
Tradeoffs" in the tradeoff assessment dialog box and clicking the
“review” button. LDW will redraw the tradeoff and will ask you
if it is OK. If you click "OK" or "Cancel," LDW won't make any
changes. If you click "Delete," LDW delete the tradeoff after you
confirm. If you click "Redo", LDW will return you to the tradeoff
assessment process for the tradeoff.
Assessing Weights by Direct Entry
LDW lets you directly enter the weights for a goal. You can do
this by selecting the "direct entry" method and clicking the
"Assess" button in the assess weights dialog box. When you do
this you will see a weight entry screen like the one in Figure 7-13.
Section 7 -- Using LDW 2: Assessing 7-31