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Chapter 18 solutions 4-8

Chapter 18 solutions 4-8 - OM2 C18 OM2 Chapter 18 Project...

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OM2 -C18 OM2 Chapter 18: Project Management-problem solutions Problems, Activities, and Discussions (4) Construct a project network for the activities listed below. Do not attempt to perform any further analysis. Immediate Activity Predecessor A B C A D A,B E C,D F C,D G E H F 1
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OM2-C18 (5) Rozales Manufacturing Co. is plarming to install a new flexible manufacturing system. The activities that must be performed, their immediate predecessors, and estimated activity times are shown below. Draw the project network and find the critical path computing early and late start days, early and late finish days, and activity slack. Estimated Immediate Activity Time Activity Description Predecessors (days) A Analyze current performance 3 B Identify goals A 2 C Conduct study of existing operation A 6 D Define new system capabilities B 7 E Study existing technologies B 2 F Determine specifications D 7 G Conduct equipment analyses C,F 10 H Identify implementation activities C 3 I Determine organizational impacts H 4 J Prepare report E, G, I K Establish audit procedure H o 3 sr=IO sr= 15 The table below summarizes the dates and slack for each activity. 2
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OM2 - C18 Activity Immediate Predecessor Time (days) Earliest Start Earliest Finish Latest Start Latest Finish Slack A -- - 3 0 3 0 3 0 B A 2 3 5 3 5 0 C A 6 3 9 13 19 10 D B 7 5 12 5 12 0 E B 2 5 7 27 29 22 F D 7 12 19 12 19 0 G C,F 10 19 29 19 29 0 H C 3 9 12 22 25 13 I H 4 12 16 25 29 13 J E,G,I 2 29 31 29 31 0 K H 3 12 15 28 31 16 Critical path is A-B-D-F-G-J with a final project completion time of 31 days.
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