25-08-2017, 09:32 PM
Decision Support Systems
Support Systems.ppt (Size: 372 KB / Downloads: 201)
Decision Support Systems
Decision support systems (DSS)
Offer potential to assist in solving both semi-structured and unstructured problems
Problem Solving Factors
Multiple decision objectives
Increased alternatives
Increased competition
The need for creativity
Social and political actions
International aspects
Technology
Time compression
Characteristics of a DSS (3)
Performs different types of analyses
“What-if” analysis
Makes hypothetical changes to problem and observes impact on the results
Simulation
Duplicates features of a real system
Goal-seeking analysis
Determines problem data required for a given result
Goal Seeking Example
You know the desired result
You want to know the required input(s)
Example:
Microsoft Excel’s “Goal Seek” and “Solver” functions
Components of a DSS
Model management software (MMS)
Coordinates the use of models in the DSS
Model base
Provides decision makers with access to a variety of models
Dialogue manager
Allows decision makers to easily access and manipulate the DSS
Executive Support System
Characteristics
A specialized DSS that includes all the hardware, software, data, procedures, and people used to assist senior-level executives within the organization