Page 114 - Six Sigma Advanced Tools for Black Belts and Master Black Belts
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OTE/SPH
 OTE/SPH
                         2:56
                               Char Count= 0
 JWBK119-08
          August 31, 2006
                                 Future Reality Tree (FRT)                    99
                                    N1. Operators
                                   cannot cope with
                                     the number of
                                        calls

                          C1a.         C1b. Not
                       Operators are   enough
                       inexperienced  operators







                     Training program
                          is not      Too many        High turnover
                      comprehensive  new operators

                      Figure 8.6 Addition of a negative reinforcing loop.


                              100
                            User feels
                             frustrated
                                                                RC2
                                                             User is busy

                                                             Root Cause
                        RC1                      110
                     Nothing to do            User wastes
                   during waiting time        time waiting
                     Root Cause


                              121                 122               123
                          Operators cannot    User wastes time   User needs to
                           cope with the     going through all the  speak to the
                           number of calls       options          operator


                                                                    RC5
                131           RC3                RC4            Pre-set options
             Operators are  Not enough         Options not in  not comprehensive
             inexperienced  operators        order of popularity   enough
                            Root Cause         Root Cause        Root Cause




                RC6           141               RC7
           Training program is  Too many new  High turnover
            not comprehensive  operators
              Root Cause                      Root Cause
                             Figure 8.7 Addition of root causes.
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