Tutorial_7 - IELM202 Tutorial 7 1/6/11 1. Example:...

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IELM202 Tutorial 7 1/6/11 1. Example: Construct a project network for the project of building a house. The activities, their durations (in days) and their precedence relationships are given in the table below. Activity Duration Immediate predecessor A. Excavate 2 B. Foundation 4 A C. Rough wall 10 B D. Rough exterior plumbing 4 C E. Rough interior plumbing 5 D F. Rough electrical work 7 C G. Wall board 8 E, F H. Flooring 4 G I. Interior painting 5 G J. Interior fixtures 6 H, I K. Roof 6 C L. Exterior siding 7 K M. Exterior painting 9 D, L N. Exterior fixtures 2 M Use the rules, we can get the following project network for this project. Note that arcs (5 8) and (11 12) are dummy activities (duration of dummy activities is 0). A 2 1 3 4 7 5 9 10 8 6 13 12 11 N M L 0 H I K G E F D C B J 2 4 5 2 9 7 8 5 7 6 4 10 4 0 6 Step 1: determine the earliest time for events Definition: The earliest event time for node i is the earliest time at which the event corresponding to node i can occur. We denote it by ET(i). Computation of Earliest Event Times
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This note was uploaded on 01/05/2011 for the course IELM IELM202 taught by Professor D during the Fall '10 term at HKUST.

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Tutorial_7 - IELM202 Tutorial 7 1/6/11 1. Example:...

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