Design of Experiments Guide  • Response Surface Designs
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Response Surface Designs
 
Response surface designs are useful for modeling quadratic surfaces. A response surface model can identify a point where a minimum or maximum value of the response occurs, if one exists inside the design region. Three distinct values for each factor are necessary to fit a quadratic function, so standard two-level designs are not appropriate for fitting curved surfaces.
Response surface designs are capable of fitting a second-order prediction equation for the response. The quadratic terms in these equations model the curvature in the true response function. If a maximum or minimum exists inside the design region, the point where that value occurs can be estimated.
Figure 10.1 Model for Response Surface Design Results
Contents 
Overview of Response Surface Designs
Example of a Response Surface Design
Construct a Box-Behnken Design
Analyze the Experimental Data
Explore Optimal Settings
Response Surface Design Window
Responses
Factors
Choose a Design
Specify Output Options
Make Table
Response Surface Design Options

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Help created on 7/12/2018