Page 245 - The Handbook for Quality Management a Complete Guide to Operational Excellence
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232    P r o c e s s   C o n t r o l                                                                                                                                S u p p l y   C h a i n   M a n a g e m e n t    233


                          Criteria                                     Pass    Fail     See Note
                          The quality system has been developed        ❏       ❏        ❏
                          The quality system has been implemented      ❏       ❏        ❏
                          Personnel are able to identify problems      ❏       ❏        ❏
                          Personnel recommend and initiate solutions   ❏       ❏        ❏
                          Effective quality plans exist                ❏       ❏        ❏
                          Inspection stations have been identified     ❏       ❏        ❏
                          Management regularly reviews quality program status  ❏  ❏     ❏
                          Contracts are reviewed for special quality   ❏       ❏        ❏
                          requirements
                          Processes are adequately documented          ❏       ❏        ❏
                          Documentation is reviewed by quality         ❏       ❏        ❏
                          Quality records are complete, accurate, and up-to-  ❏  ❏      ❏
                          date
                          Effective corrective action systems exist    ❏       ❏        ❏
                          Nonconforming material is properly controlled  ❏     ❏        ❏
                          Quality costs are properly reported          ❏       ❏        ❏
                          Changes to requirements are properly controlled  ❏   ❏        ❏
                          Adequate gage calibration control exists     ❏       ❏        ❏

                      Figure 11.1  Vendor evaluation checklist.


                                   The above checklist is a simplified version of those used in practice,
                                which can consume 15 pages or more. Caution should be exercised in con-
                                structing overly cumbersome and difficult-to-use checklists. If you are not
                                bound by some government or contract requirement, it is recommended
                                that you prepare a brief checklist similar to the one above and supplement
                                the checklist with a report that documents your personal observations.
                                Properly used, the checklist can help guide you without tying your hands.
                                   While a checklist is a useful aid, it can never substitute for the knowl-
                                edge of a skilled and experienced evaluator. Numerical scores should be
                                supplemented by the observations and interpretations of the evaluator.
                                The input of vendor personnel should also be included. If there is dis-
                                agreement between the eval uator and the vendor, the position of both
                                sides should be clearly described.
                                   In spite of their tremendous popularity, physical vendor surveys are
                                only one means of evaluating the potential performance of a supplier, and
                                studies suggest they are limited in their usefulness. One such study by
                                Brainard (1966) showed that 74 of 151 vendor surveys result ed in incor-
                                rect predictions; that is, either a good supplier was predicted to be bad or
                                vice versa; a coin flip would’ve been as good a predictor, and a lot cheaper!
                                Desk surveys (discussed later in this chapter) may provide a satisfactory
                                alternative.  Perhaps  more  important  than  surveys  is  the  actual  perfor-
                                mance of the vendor. Vendors should submit “correlation samples” with








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