A scheduling analyst is performing a forward pass on the project network diagram. One activity is scheduled to begin at the start of Day 5 and has a planned duration of four working days, with no non-working time in between. Based on standard CPM conventions, on which calendar day should the analyst record the activity's Early Finish value?
The activity's Early Finish (EF) is calculated with the CPM forward-pass formula EF = ES + Duration - 1 because ES is measured at the start of the first day while EF is recorded at the end of the last day. Substituting the given values: EF = 5 + 4 - 1 = 8. Therefore, the task that starts on Day 5 and lasts four working days finishes at the end of Day 8. A result of Day 9 would omit the '- 1' adjustment, Day 7 would assume only three days of work, and Day 10 does not follow any CPM rule.
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