Page 690 - ExtendSim User Guide
P. 690

664 Analysis
Scenario analysis
DOE methods
As introduced on page 656, the Scenarios tab of the Scenario Manager block allows you to choose the DOE method. These are described more fully below.
DOE Method Manual
Full factorial
JMP custom (Windows only)
JMP custom – create and run (Windows only)
Minitab optimal (Windows only)
Minitab optimal - create and run (Windows only)
Description
Enter factors for each scenario manually
Create Scenarios creates one scenario for each combination of factor values. Since every possible combination of factors is generated, this takes the lon- gest to run.
Create Scenarios opens JMP and causes it to create a custom or D-optimal design, then displays the factors and responses in both ExtendSim and JMP.
Create and Run Scenarios opens JMP, causes it to create a Custom or D- optimal design, displays the factors and responses in both ExtendSim and JMP, then immediately runs the scenarios.
Create Scenarios opens Minitab and causes it to create an Optimal or D- optimal design, then displays the factors and responses in both ExtendSim and Minitab.
Create and Run Scenarios opens Minitab, causes it to create an Optimal or D-optimal design, displays the factors and responses in both ExtendSim and Minitab, and then immediately runs the scenarios.
☞ The JMP custom and Minitab optimal methods result in far fewer scenarios than full factorial. Comparison with other analysis methods
The Scenario Manager is just one of the ExtendSim analysis tools. As described in the table below, each tool has a different purpose.
Technique Purpose
Question
Sensitivity Analysis
Study the behavior of the model in response to changes in a single input parameter
If a parameter had this value, how would it effect model outputs?
Scenario Manager
Study and compare the behavior of the model in response to changes in multiple input parame- ters. Learn how the sys- tem behaves under different conditions.
If several parameters had these values, how would that effect model outputs?
Optimization
Determine the best con- figuration of model parameters, given a spe- cific goal (usually to min- imize cost or maximize profit)
What configuration allows a model to behave optimally?
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