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Critical Path Method (CPM)

Critical Path Method (CPM). David S.W. Lai Sept 9, 2013. Example. from Shtub , Bard, Globerson , Project Management, 2 nd Edition, Pearson, 2005. Activity-on-Node Network. 30. 3. 5. 0. 8. A. D. G. END. K. 15. 7. 2. 0. B. E. H. Start. 10. J. 25. 1. 4. C. F. I.

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Critical Path Method (CPM)

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  1. Critical Path Method (CPM) David S.W. Lai Sept 9, 2013

  2. Example from Shtub, Bard, Globerson, Project Management, 2nd Edition, Pearson, 2005.

  3. Activity-on-Node Network 30 3 5 0 8 A D G END K 15 7 2 0 B E H Start 10 J 25 1 4 C F I Notations ES: Earliest Start LS: Latest Start TS: Total Slack EF: Earliest Finish LF: Latest Finish FS: Free Slack

  4. Earliest Start and Earliest Finish 30 3 5 0 8 A D G END K 15 7 2 0 B E H Start 10 J 25 1 4 C F I Notations ES: Earliest Start LS: Latest Start TS: Total Slack EF: Earliest Finish LF: Latest Finish FS: Free Slack

  5. Latest Start and Latest Finish 30 3 5 0 8 A D G END K 15 7 2 0 B E H Start 10 J 25 1 4 C F I Notations ES: Earliest Start LS: Latest Start TS: Total Slack EF: Earliest Finish LF: Latest Finish FS: Free Slack

  6. TS = 8 FS = 8 TS = 1 FS = 0 TS = 1 FS = 0 TS = 0 FS = 0 TS = 0 FS = 0 30 3 5 0 8 A D G TS = 0 FS = 0 END K 15 7 2 TS = 16 FS = 0 TS = 0 FS = 0 TS = 1 FS = 1 0 B E H Start 10 J 25 1 4 C F I TS = 0 FS = 0 TS = 16 FS = 16 TS = 0 FS = 0 TS = 0 FS = 0 Notations ES: Earliest Start LS: Latest Start TS: Total Slack EF: Earliest Finish LF: Latest Finish FS: Free Slack

  7. TS = 8 FS = 8 TS = 1 FS = 0 TS = 1 FS = 0 TS = 0 FS = 0 TS = 0 FS = 0 30 3 5 0 8 A D G TS = 0 FS = 0 END K 15 7 2 TS = 16 FS = 0 TS = 0 FS = 0 TS = 1 FS = 1 0 Critical Path B E H Start 10 J 25 1 4 C F I TS = 0 FS = 0 TS = 16 FS = 16 TS = 0 FS = 0 TS = 0 FS = 0 Notations ES: Earliest Start LS: Latest Start TS: Total Slack EF: Earliest Finish LF: Latest Finish FS: Free Slack

  8. Exercise Question: Determine the critical path and the slacks. Interpret their meanings. To check your solution: The critical path is (C, I). The project duration is 14 days. from Shtub, Bard, Globerson, Project Management, 1st Edition, Prentice-Hall, 1994.

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