Qat1 Task 4 Essay

1068 Words Sep 1st, 2014 5 Pages
Company A PERT/CPM Analysis | | | | | Task Detail Table 1.1 | | | | | | | | | | | | Task | Preceding Activity | Optimistic Time to Complete
(weeks) | Probable Time to Complete
(weeks) | Pessimistic Time to Complete
(weeks) | Expected Time to Complete (weeks) | Variance
(weeks) | START | | | | | | | A | START | 2 | 3 | 4 | 3 | 0.11 | B | START | 5 | 6 | 13 | 7 | 1.78 | C | A | 3 | 4 | 8 | 4.5 | 0.69 | D | B | 10 | 11 | 15 | 11.5 | 0.69 | E | C | 4 | 5 | 6 | 5 | 0.11 | F | B | 8 | 10 | 12 | 10 | 0.44 | G | F | 4 | 6 | 11 | 6.5 | 1.36 | H | D,E | 8 | 10 | 18 | 11 | 2.78 | I | G |
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The project path of task A(3weeks) plus task C(4.5weeks) plus task E(5weeks) plus task H(11weeks) plus task J(3.5weeks) which equals 27 weeks total.

The project path of task B(7 weeks) plus task D(11.5 weeks) plus task H(11weeks) plus task J(3.5weeks) which equals 33 weeks total.

The project path of task B(7 weeks) plus task F(10 weeks) plus task G(6.5weeks) plus task I(6.5weeks) plus task J(3.5weeks) which equals 33.5 weeks total. EXPECTED COMPLETION TIME of entire project is 33.5 weeks total.

Project Task A slack in weeks is found by taking 33.5 weeks minus 27 weeks which equals 6.5 weeks

Project Task H slack in weeks is found by taking 33.5 weeks minus 33 weeks which equals 0.5 weeks

Project Task F scheduled start week is found by taking task Project Expected completion Time(33.5 weeks) minus task J(3.5weeks) minus task I(6.5weeks) minus task G(6.5weeks) minus task F(10 weeks) which equals the end of the 7th week or beginning of the 8th week. Or Project Start Time plus task B(7 weeks) is the finish time for task B therefore, task F starts immediately afterward so that would make the start of task F the 8th week.
Project Task I scheduled finish week is found by adding task B(7 weeks) plus task F(10 weeks) plus task G(6.5weeks) plus task I(6.5weeks) which equals the 30th week of the 33.5 week project.

The probability of

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