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1 Jen Sites 13-30/31 13-30. Zuckerman Wiring and Electric is a company that installs wiring and electrical fixtures in residential construction. John Zuckerman.

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Presentation on theme: "1 Jen Sites 13-30/31 13-30. Zuckerman Wiring and Electric is a company that installs wiring and electrical fixtures in residential construction. John Zuckerman."— Presentation transcript:

1 1 Jen Sites 13-30/ Zuckerman Wiring and Electric is a company that installs wiring and electrical fixtures in residential construction. John Zuckerman has been concerned with the amount of time that it takes to complete wiring jobs. Some of his workers are very unreliable. A list of activities and their optimistic, their pessimistic and their most likely completion times in days are given in the following table:

2 2 ACTIVITYDAYSIMMEDIATE PREDECESSORS EXPECTED TIME * VARIANCE amb A /36 B24454/36 C1232 D678C7 E246B, D416/36 F61014A, E1064/36 G124A, E2.29/36 H369F636/36 I101112G114/36 J141620C16.336/36 K2810H, I7.364/36 TOTAL76.66 WEEKS 3 + 4(6) + 8/6

3 3 The total completion time is 37 weeks John Zuckerman would like to determine the total project completion time and the critical path for installing electrical wiring and equipment in residential houses. See Problem for details. In addition, determine ES, EF, LS, LF, and slack for each activity.

4 4 The slack for each activity is: A – 7 B – 5 C – 0 D – 0 E – 0 F – 0 G – 3 H – 0 I – 3 J – 19 K – 0 The critical path is: C, D, E, F, H & K


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