What is a decision support model?

by Dan Power

In the realm of decision support, a model is a quantitative description of a phenomenon. A model replicates major properties of a phenomenon of interest and can be used to study it. A model is an abstraction of a real system or thing. In general, a quantitative model attempts to link the major variables or elements of a system in such a way that results can be generated that are predictive of the behavior of the actual system.

In broad terms, a quantitative description means that inputs and outputs are processed by the variables that describe any transformations that occur as part of a phenomenon. The model has a boundary and both inputs and outputs cross the boundary. The values of inputs are processed by the model to determine the values of outputs. A simple example may help explain the decision support model. Let's describe a cost estimation model where total cost is equal to number of labor hours multiplied by the wage rate per hour. So TC = N * $12.00, where $12.00 is the wage rate. N is the input and TC is the output. The model describes the transformation of the input to determine the output. If N = 30, then TC = $360.00. This example is a simple algebraic model.

Last update: 2013-01-13 06:26
Author: Daniel Power

Print this record Print this record
Show this as PDF file Show this as PDF file

Please rate this entry:

Average rating: 5 from 5 (1 Votes )

completely useless 1 2 3 4 5 most valuable

You cannot comment on this entry

DSS Home |  About Us |  Contact Us |  Site Index |  Subscribe | What's New
Please Tell Your Friends about DSSResources.COMCopyright © 1995-2015 by D. J. Power (see his home page).
DSSResources.COMsm is maintained by Daniel J. Power. Please contact him at with questions. See disclaimer and privacy statement.


powered by phpMyFAQ 1.5.3