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chap 6  3/4/97 4:14 PM  Page 71




                                        task analysis                       71


                 Example #4: This example shows the skills that anyone
                 would need to perform three of the steps in the trou-
                 bleshooting task shown earlier. (Initiating and terminat-
                 ing cues are not shown.)


                 Figure 6.6         Troubleshooting Skill Requirements




                     Receive
                   Malfunction
                     Report
                                                         On-Site Troubleshooting
                    Interpret                            Key:  TS = troubleshooting
                   Malfunction                                    PM = preventive maintenance
                     Report

                     Locate
                    Equipment
                                   Op-Induced  YES
                                    Trouble?
                                                        Clear
                    Interview       NO                 Trouble
                    Operator
                                     Try
                                   Quick Fixes         Instruct
                     Verify
                    YES
                    Symptoms                          Operator
                                                A
                                    Trouble  YES
                                    Cleared?
                                    NO
                                                        PM      YES
                                      TS              Needed?
                                     Aids    YES                 Perform
                                   Available?
                                                       NO       Preventive
                                                                Maintenance
                                    NO         Use TS Aids
                                    Perform
                                 Split-Half Search
                                                       Make
                                                     Final Checks
                                     Have
                              NO   Good Idea
                                   (Hypothesis)?
                                                      Complete
                                                      Paperwork
                                   YES


               To Learn More: See Resources #1, #4, #12, and #15.
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