ABSTRACT
DEXPERT is an expert system within General Motors for the design and analysis of experiments. The fundamental basis for this program is a descriptive mathematical model of the experiment under consideration. From this mathematical model, expected mean squares are computed, tests are determined, and the power of the tests computed. This supplies the information needed to compare different designs and choose the best possible design. DEXPERT provides verbal interpretations to facilitate these comparisons. A layout sheet is then generated to aid in the collection of data. Once the data has been collected and entered into the system, DEXPERT analyses and interprets the results using a number of analytical and graphical methods.
