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Software Project Management




                    Notes
                                              Figure 11.8:  Scheduled Resource  Load Chart  with ES  and Slack  Updates

























                                     Notes  The parallel method schedules resources to various activities through leveling and
                                     smoothing. This is accomplished in the above problem by delaying and reducing the slack
                                     on  activities 3,  5  and  6. Using  the load  profiles presented above, graphical  resource
                                     aggregation charts, similar to the ones presented earlier in this lesson, can be developed.
                                   Next, keep a log of each activity change and the update you make each period—e.g., period 0-1,
                                   1-2, 2-3, etc. The log should include any changes or updates in ES and slack times each period,
                                   activities  scheduled  and  activities  delayed.  (Hint:  Remember to  maintain the  technical
                                   dependencies of the network.) The log is shown in Table 11.1 below.
                                                     Table 11.1:  Log of the Parallel  Method of  Scheduling

                                              Period    Activity                Changes
                                               0-1        2      Schedule activity 2 first by the minimum slack rule
                                                          1      Schedule activity 1
                                                          3      Delay activity 3 ES to period 1. Reduce slack to 0.
                                                          5      Delay activity 5 ES to period 6. Reduce slack to 0.
                                               1-2        3      Delay activity 3 ES to period 2. Reduce slack to -1.
                                                          5      Delay activity 5 ES to period 7. Reduce slack to -1.
                                                          6      Delay activity 6 ES to period 11. Reduce slack to -1.
                                               2-3        3      Delay activity 3 ES to period 3. Reduce slack to -2.
                                                          5      Delay activity 5 ES to period 8. Reduce slack to -2.
                                                          6      Delay activity 6 ES to period 12. Reduce slack to -2.
                                               3-4        3      Schedule activity 3
                                               4-5         4     Schedule activity 4
                                               5-6         ---   No changes
                                               6-7         ---   No changes
                                               7-8         ---   No changes
                                               8-9         5     Schedule activity 5
                                               9-10        ---   No changes
                                              10-11        ---   No changes
                                              11-12        ---   No changes
                                              12-13        6     Schedule activity 6



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