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SAS/QC Software

Design of Experiments

Many quality-conscious manufacturers are taking advantage of experimentation to systematically improve a product or process. With the SAS System, you can generate factorial, fractional factorial, and mixed-level designs -- with or without blocking. When standard designs are not appropriate, you can generate designs based on A- or D- optimality.

The SAS System provides software in which you specify a set of candidate design points and a linear model, and the design points are chosen so that the terms in the model can be estimated as efficiently as possible.

SAS Procedures for Experimental Design

SAS/QC software provides two procedures for experimental design.

The FACTEX procedure constructs the following types of factorial designs:

The OPTEX procedure constructs optimal designs when factorial designs are not available. The standard designs described in the previous section have assured degrees of precision and orthogonality that are important for the exploratory nature of experimentation. Sometimes, however, standard designs are not available. In such cases PROC OPTEX enables you to do the following:

The ADX Interface for Design of Experiments

The ADX Interface for Design of Experiments is designed primarily for engineers and researchers who require a point-and-click solution for the entire experimental process, from building the designs through determining significant effects to optimization and reporting. The ADX Interface does not require SAS programming.