Page 320 - Six Sigma Advanced Tools for Black Belts and Master Black Belts
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OTE/SPH
 OTE/SPH
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          August 31, 2006
 JWBK119-19
                                   Concluding Remarks                        305
                                   Start

                              Determine size of
                                regular design


                              Specify number of
                              effects needed and
                               select lean design

                               Run experiment


                               Calculate dummy
                               responses with
                                available data


                               Calculate needed
                                  effects



                                                   Reduce number of
                              At least one dummy   dummy responses
                               response in use?
                                                       by one
                                   Yes


                                                  Replace one dummy
                              Necessary to refine  Yes  response by
                      No          results?         experimental value
                                                  from an addition run

                                   No

                                   Stop

                    Figure 19.1  Lean design for incremental experimentation.


      nature inherent in the results generated at each stage is also consonant with the spirit
      of ‘continuous improvement’ in an investigation.


                          19.7  CONCLUDING REMARKS

      Experimental design is normally understood to be used in such a way that, regardless
      of the type and size of experiment, no data analysis could commence before the full
      set of response values is available. In other words, the investigator must wait for the
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