Question
Calculating the Early Start (ES), Early Finish (EF), Late Start (LS), Late Finish (LF) and the slack for the different activities is important for project
Calculating the Early Start (ES), Early Finish (EF), Late Start (LS), Late Finish (LF) and the slack for the different activities is important for project management. From the network diagram analysis on Microsoft Project file CH5 Question #15, the following values denote the ES, EF, LS, LF, and the Slack time for the different activities. The figures were converted into days in the MS Project for analysis and then reconverted into weeks
Task/Activity | ES Time | EF Time | LS Time | LF Time | Slack Time |
A | 0 | 3 | 5 | 7 | 5 |
B | 0 | 5 | 0 | 5 | 0 |
C | 4 | 21 | 8 | 25 | 4 |
D | 6 | 12 | 6 | 12 | 0 |
E | 6 | 15 | 8 | 17 | 2 |
F | 13 | 17 | 13 | 17 | 0 |
G | 18 | 25 | 18 | 25 | 0 |
H | 26 | 27 | 26 | 27 | 0 |
I | 18 | 26 | 19 | 27 | 1 |
J | 28 | 32 | 28 | 32 | 0 |
Based on the analysis, the project requires a minimum of 32 weeks for completion, especially after taking into account critical path and slack time for each activity. Furthermore, Activity A. finishing in five weeks and Activity B finishing in five weeks would make no difference in the project completion date as it would require a minimum of 32 weeks to complete. Considering the slack time, the critical path for the project implementation is highlighted in Red while the non-non critical path is highlighted in blue.
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