Configuring Postprocessing Options

You use the Postprocessing tab to define the options that you want Isight to take after the component executes. The options available depend on the system type that you selected.

  1. Double-click the Taguchi Robust Design component icon .

    The Taguchi Robust Design Component Editor appears.

  2. From the Taguchi Robust Design Component Editor, click the Postprocessing tab.

    Best and worst factor levels are estimated based on main effect calculations. The combination of best or worst levels may not be a combination that was included in the control experiment and, hence, no metric (e.g., S/N ratio) value is available. The metric value is estimated automatically, again based on main effect information. Choosing S/N Ratio and/or Sensitivity allows the estimated response metric values to be verified with actual executions of the noise array and signal levels.

  3. Click a response.

  4. Click in the Confirm column, and select one of the following:

    • Best Levels

    • Worst Levels

    • Best and Worst Levels

  5. If desired, click Edit at the bottom of the editor to set options for multiple responses. For more information, see Editing Attributes for Multiple Parameters.

  6. Select the metric value check box to select the performance metrics to be confirmed.

    For each selected response, any or all the following estimated metric values (at best and/or worst factor levels) can be confirmed:

    • S/N Ratio

    • Sensitivity (Static or Dynamic only)

    • Mean (Static only)

    • Variance (Static only)

    • Loss Function(Static only)

    • Beta 1 (Dynamic-Standardized only)

    • Beta 2 (Dynamic-Standardized only)

    • Beta 3 (Dynamic-Standardized only)

    As shown, confirmation of Mean, Variance, and Loss Function applies only to static systems. Confirmation of Beta 1, Beta 2, and Beta 3 applies only to dynamic-standardized systems. The runs for each best/worst, response, metric, and combination are performed independently, each requiring full execution of the noise array (times the number of signal factor levels for the dynamic case).

    (Dynamic-Standardized Systems only) Determine the Standardized S/N Ratio setting. This option determines how the S/N ratio is calculated. For more information regarding the standardized S/N ratio calculation, see Taguchi Dynamic-Standardized Analysis. The following options are available:

    • Generic formulation

    • Taguchi formulation

  7. Click Run baseline design point (all noise/signal experiments will be executed) to specify an evaluation of robustness at baseline design, if necessary.

    After execution of the designed experiments, Isight executes the noise/signal combinations at the baseline design and performs Taguchi postprocessing on that point to calculate the values of the Taguchi metrics for the baseline design. Then, these values are used for comparison with metric values at identified best/worst levels to calculate benefit/loss achieved through the performed experimentation and postprocessing.

  8. Click OK to save your changes and to close the Taguchi Robust Design Component Editor.