EBK OM
EBK OM
6th Edition
ISBN: 9781305888210
Author: Collier
Publisher: YUZU
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Chapter 18, Problem 6PA
Summary Introduction

Interpretation: The network diagram is to be drawn and the critical path is go be located by computing the early start, late start, early finish, late finish and activity slack.

Concept Introduction:

Project Scheduling is used in Project planning and coordination by using Program Evaluation Review Technique (PERT) and Critical Path Method (CPM). PERT is a network based scheduling procedure. This technique is used to plan, schedule and control different project such as construction works, design installation of system, maintenance work and research and development process.

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Norton Industries is installing a new computer system. The activities, the activity times, and the project network are as follows. Activity Time A B 6. 2 D 5 4. F 3 3 A. E F Start H Finish D B G The critical path calculation shows B-D-E-F-H is the critical path, and the expected project completion time is 21 weeks. After viewing this information, management requested overtime be used to complete the project in 16 weeks. Thus, crashing of the project is necessary. The following information is relevant. Time (weeks) Cost ($) Activity Normal Crash Normal Crash A 3 1 900 1,700 B 6. 3 2,000 4,100 2 500 1,000 D 3 1,800 2,400 E 4 3 1,500 1,850 F 3 1 3,000 3,900 8,000 9,800 3 1,000 2,000 (a) Formulate linear programming model that can be used to make the crashing decisions for this project. (The objective function should be the additional cost of crashing. Let x; = the finish time for activity i and y; = the amount of time activity i is crashed where i = A, B, C, D, E, F, G, and H.) Min s.t.…
You are creating a customer database for the Hillsboro Hops minor league baseball team. Draw a project network given the information in the table that follows. Complete the forward and backward pass, compute activity slack, and identify the critical path. How long will this project take? How sensitive is the network schedule? Calcu-late the free slack and total slack for all noncritical activities.ID Description Predecessor Time (days)A Systems design    None 2 B Subsystem A design A     1C Subsystem B design A 1D Subsystem C design A 1E Program A B      2F Program B C 2G Program C D 2H Subsystem A test E 1I Subsystem B test F       1J Subsystem C test    G 1K Integration H, I, J 3L Integration test        K 1
Create a Network Diagram and Critical Path using the Data. Determine the minimum project duration. The duration of each activity is in days.
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