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Logical Decisions Decision Support
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Table of Contents Table of Contents
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Assessing Weights with Weight Ratio
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Assessing Interactions Between Meas
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Introduction Real decisions aren't
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S E C T I O N Requirements and Inst
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"Logical Decisions". This program g
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Quick Start Introduction This secti
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Defining goals and measures. In LDW
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Figure 3-1. The SUF for "Years of E
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weights of the measures. All of the
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S E C T I O N Basic Tutorial 4
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Figure 4-1. Tutorial overview. 4-2
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Now lets make sure the alternatives
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Assume you have decided that you wi
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Next we will enter the measures for
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Defining Preferences The alternativ
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1. Select the Assess::Common Units
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almost equally unacceptable, while
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1. Select the Assess::Common Units
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When you do this, the tradeoff grap
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1. Select "Performance" and "Price"
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8. Click on the "Equal" button to t
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Figure 4-11. Display generated by R
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Figure 4-13. Overall ranking for tr
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Figure 4-15. Graph showing sensitiv
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You can see the completed introduct
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Advanced Tutorial This tutorial sec
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Probabilities There is a problem wi
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This information indicates that the
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A uniform distribution is defined b
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On the left is a list of the possib
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Figure 5-2. Example of Results::Unc
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screen a large database for the alt
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9. LDW will ask if you want to appe
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commit to buying their truck before
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see that the rankings for all the a
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S E C T I O N Using LDW 1: Structur
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The Edit::Insert option. The Insert
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! Summary -- view a dialog box that
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structure like an organization char
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If you check the Show Assessment St
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saves it for later pasting. When yo
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You can create a new Matrix view by
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The quick entry view shows the alte
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Structuring Goals The goals in an L
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these two fields to describe each m
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the hierarchy. In the Matrix view,
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! Point Estimate -- use a single nu
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Figure 6-12. Example of a measure l
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Figure 6-14. Example of a measure l
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pass, LDW replaces each probabilist
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Figure 6-17. Dialog box for definin
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Figure 6-18. Measure Category Dialo
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- Page 124 and 125: measures with categories require mu
- Page 126 and 127: The "Reset" button deletes any asse
- Page 128 and 129: You can change the shape of the cur
- Page 130 and 131: Figure 7-4. Utility Assessment Scre
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- Page 134 and 135: Figure 7-6. Assessment matrix for A
- Page 136 and 137: You can, however, leave the assessm
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- Page 140 and 141: the same level. LDW provides a grap
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- Page 144 and 145: The check box labeled "Allow Repres
- Page 146 and 147: Next you will see a tradeoff assess
- Page 148 and 149: The Tradeoff::Use Alternatives to S
- Page 150 and 151: Figure 7-13. Example of Direct Entr
- Page 152 and 153: You can think of the importance num
- Page 154 and 155: Figure 7-15. Assessment Screen for
- Page 156 and 157: When you have selected two members
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- Page 160 and 161: clicking on the "Initialize" button
- Page 162 and 163: Set a Small k. The Enter Small k op
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- Page 166 and 167: Figure 7-18. Effects of consistency
- Page 170 and 171: Each of these displays can be selec
- Page 172 and 173: After you press Enter, LDW will dis
- Page 174 and 175: were done against price. When you s
- Page 176 and 177: Figure 8-6. Example of Review::Trad
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- Page 180 and 181: you select this option, LDW will di
- Page 182 and 183: Figure 8-12. Example of Review::Wei
- Page 184 and 185: Figure 8-13.Example of Review::Weig
- Page 186 and 187: Figure 8-14. Example of Review::Wei
- Page 188 and 189: ! Rank Alternatives ! Stacked Bar R
- Page 190 and 191: Figure 8-17. Example of Results::Ra
- Page 192 and 193: Figure 8-19. Example of Results::St
- Page 194 and 195: Figure 8-21. Dialog box for Results
- Page 196 and 197: In the window, the upper pane shows
- Page 198 and 199: Figure 8-25. Example of Results::Se
- Page 200 and 201: Figure 8-27. Dialog box for Results
- Page 202 and 203: Figure 8-29. Dialog box for Results
- Page 204 and 205: most benefit for your costs. You sh
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- Page 208 and 209: Cutoff Summary The Results::Cutoff
- Page 210 and 211: you will see. If you select the "Sh
- Page 212 and 213: LDW displays utilities greater than
- Page 214 and 215: You can view an alternatives compar
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Copying Graphics Images to the Clip
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! Change the display for the common
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The "Number of Trials" edit box con
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Figure 8-49. Dialog box for Prefere
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than its original size. Zoom percen
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Modifying individual graphic object
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Figure 8-53. Text font dialog box.
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Loading an LDW Analysis You can loa
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! Update and Append -- both modify
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When you have selected the correct
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then click the field to use to upda
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The option then proceeds automatica
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Figure 8-60. Preferences::Automatic
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S E C T I O N In Depth 9
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On the other hand, the weights of t
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Identifying Alternatives Alternativ
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Identifying and Defining Alternativ
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of the hierarchy be made up of eval
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The default is that measure levels
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categories' sites. For example, the
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objective measure levels and the mo
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no intrinsically correct shape for
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this truck B, and call the change f
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Figure 9-4. SUF curve resulting fro
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Figure 9-5 summarizes the process o
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other measures, including cost, and
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The second parameter, local risk av
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Each cell in the matrix represents
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always a complete set of utilities
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The utility of an alternative on th
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Different preference assessment met
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similar but more complicated if the
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The first member to be improved is
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decision maker to state importance
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It should be easier for a decision
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Figure 9-8 shows how a tradeoff can
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Figure 9-9. Example graph for trade
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This dialogue let us establish a tr
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Changing Weight Assessment Methods
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Figure 9-11. Extreme example of the
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Thus, proportionally increasing the
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The level of big K can result in se
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levels on the two measures are requ
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A: I could see where some people mi
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A: Wow, that's pretty complicated.
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If you enter a small k greater than
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9-66 Section 9 -- In Depth
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Examples Introduction This section
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Figure 10-1. Goals hierarchy for co
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The next step was to assess prefere
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The first step was to identify a pr
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The definition of measures continue
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Construction Quality goal House Sel
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the task of evaluating potential re
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Many measures represented counts of
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Figure 10-11. Tradeoff "Bubble Diag
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Commands Summary AHP Menu This sect
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Edit::Add Lets you add a new object
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Help Menu File::Printer Setup View
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Main Menu Hierarchy::Show Assessmen
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Results Menu Preferences::Color Pre
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Review Menu The graph shows relativ
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SUF Menu Review::Weights::SUF Formu
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Window Menu your analysis. The many
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Glossary Active Member Alternative
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Destructive Interaction Efficient F
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Measure Category Member Monte Carlo
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Nominal Utility Point Estimate k i=
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Sample Small k SUF willing to accep
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Utility Weight number generator and
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Bibliography This brief bibliograph
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Appendix A
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for all measures i except 1 and 2.
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Index I
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probabilistic ..............6 - 29