Operations Management: Sustainability and Supply Chain Management (12th Edition)
12th Edition
ISBN: 9780134130422
Author: Jay Heizer, Barry Render, Chuck Munson
Publisher: PEARSON
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Textbook Question
Chapter 3, Problem 12DQ
Students are sometimes confused by the concept of critical path, and want to believe that it is the shortest path through a network. Convincingly explain why this is not so.
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Students have asked these similar questions
The utility data for a network are given below. Determine the total, free, independent and
interfering floats and identify the critical path.
Activity
0-1
1-2
1-3
2-4
2-5
3-4
3-6
4-7
5-7
6-7
Duration
2
8.
10
6.
7
5
8.
3.
3.
Nikos Anastopoulos of EMPROSS Strategic IT Consultants, leads the development of a new football stadium. He developed the activities, durations, and predecessor relationships in the following table for delivering company valuations.
Activity
Predecessor
Duration in Weeks
A
-
5
B
-
3
C
A, B
8
D
C
3
E
-
4
F
E
10
G
F
8
H
E
18
I
D
20
J
D, G, I
7
K
I
5
L
H
10
6A. Draw the Network Diagram, and identify and discuss the project duration and the critical path using the following activity notation:
the first pic:
First: Draw the precedence diagram.
Second: Using the notation given identify the duration of the project: you can type it.
Third: identify the critical part and explain the critical path.
Fourth: Explain your answer. This can be done by describing the process and the observations done once the answer has been found.
6B. Draw the project’s Gantt chart
First: The…
In the cpm network diagram given below:
a-Find the critical path and show it on the diagram.
b-(2-3) Determine the floats of its activity.
Chapter 3 Solutions
Operations Management: Sustainability and Supply Chain Management (12th Edition)
Ch. 3 - Give an example of a situation in which project...Ch. 3 - Explain the purpose of project organization.Ch. 3 - What are the three phases involved in the...Ch. 3 - What are some of the questions that can be...Ch. 3 - Define work breakdown structure. How is it used?Ch. 3 - What is the use of Gantt charts in project...Ch. 3 - What is the difference between an...Ch. 3 - What is the significance of the critical path?Ch. 3 - What would a project manager have to do to crash...Ch. 3 - Describe how expected activity times and variances...
Ch. 3 - Define earliest start, earliest Finish, latest...Ch. 3 - Students are sometimes confused by the concept of...Ch. 3 - What are dummy activities? Why are they used in...Ch. 3 - What are the three time estimates used with PERT?Ch. 3 - Would a project manager ever consider crashing a...Ch. 3 - How is the variance of the total project computed...Ch. 3 - Describe the meaning of slack, and discuss how it...Ch. 3 - How can we determine the probability that a...Ch. 3 - Name some of the widely used project management...Ch. 3 - Prob. 20DQCh. 3 - The work breakdown structure (WBS) for building a...Ch. 3 - Prob. 2PCh. 3 - 3.8 The City Commission of Nashville has decided...Ch. 3 - Refer to the table in Problem 3.8. a. Draw the AON...Ch. 3 - Draw the activity-on-node (AON) project network...Ch. 3 - Given the activities whose sequence is described...Ch. 3 - 3.5 Using AOA, diagram the network described below...Ch. 3 - Prob. 8PCh. 3 - Task time estimates for the modification of an...Ch. 3 - The activities described by the following table...Ch. 3 - The following is a table of activities associated...Ch. 3 - The activities needed to build a prototype laser...Ch. 3 - Dave Fletcher (see Problem 3.10) was able to...Ch. 3 - Prob. 16PCh. 3 - Prob. 17PCh. 3 - A renovation of the gift shop at Orlando Amway...Ch. 3 - Kelle Carpet and Trim installs carpet in...Ch. 3 - The estimated times and immediate predecessors for...Ch. 3 - Rich Cole Control Devices, Inc., produces...Ch. 3 - Four Squares Productions, a firm hired to...Ch. 3 - Using PERT, Adam Munson was able to determine that...Ch. 3 - Assume that the activities in Problem 3.15 have...Ch. 3 - What is the minimum cost of crashing the following...Ch. 3 - Three activities are candidates for crashing on a...Ch. 3 - Development of Version 2.0 of a particular...Ch. 3 - Prob. 32PCh. 3 - TABLE 3.6 Southwestern University Project 1....Ch. 3 - TABLE 3.6 Southwestern University Project 2 What...Ch. 3 - TABLE 3.6 Southwestern University Project 3. If it...Ch. 3 - Project Management at Arnold Palmer Hospital Video...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - The equivalent of a new kindergarten class is born...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...Ch. 3 - At the Hard Rock Cafe, like many organizations,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.Similar questions
- PERT NETWORK. A company is faced with the following PERT network situation (time in days): REQUIRED: Calculate (expected time) for each activity. For each activity, the estimates are , , , in that order. Calculate the total time for each path and identify the critical path.arrow_forwardMake a list of the tasks that is necessary to build a duplex house (around 3000 sft) for you. Develop a table showing each task, its duration, preceding event(s), and expected duration. Develop a Network diagram for these tasks. Highlight the critical path on your Network diagram and find out slack of all activities.arrow_forwardDraw the Network Diagram, determine the critical path and draw Gantt chart for project scheduling for the following two problems Problem1. Activity Predeccsor Duration(hours) Lag Time(hours) A - 2 0 B A 4 5 C B 3 3 D B 5 0 E D, C 2 0 Problem 2. Activity Predeccsor Duration(months) A - 2 B A 1 C A 3 D B, C 1 E D 2 F D…arrow_forward
- b) – Draw the Activity-on-Node (AON) diagram using the following representation for every node: Activity Description Expected Time ES EF LS LF Slack C.) Complete the following table, determine the expected time of completion assuming that the project starts at week 0 (zero) and identify the critical path for this project. Demonstrate all your calculations. On Critical Path? Activity Activity Description ES EF LS LF Slack Yes or No Locate new facilities 2 Order furniture Interview prospective staff Hire and train staff 3 4. Remodel facilities Receive and set up furniture Move in and start up 6 7 a) Complete the following table, calculate the project variance and project standard deviation. Demonstrate all your calculations.arrow_forwardThe following information is given for a CPM network: Activity Predecessor Successor Normal Time Normal Cost Crash Time Crash Cost A --- B, C 5 $ 60 2 $ 125 B A D, C 4 70 2 90 C A, B D 6 80 3 150 D B, C --- 3 40 1 60 What is the critical path of the network?arrow_forwardQ1: Given the information below, draw the network (AOA) and find the probability of finishing the job in (40) weeks? Solve using PERT. Activity notation Weeks 1-2 2-3 2-4 2-5 3-6 4-7| 5-7 6-8 7-8 8-9 2,7,8 5,6,9 3,7,8 4,5,6 6,9,10 6,8,11 4,6,7 5,7,10 4,8,9 4,7,9 [50%]arrow_forward
- Make a list of the tasks that is necessary for Management Trainee Officer job in private banks. Develop a table showing each task, its duration, and preceding event(s). Develop a Network diagram for these tasks. Highlight the critical path on your Network diagram and find out slack of all activities.arrow_forwardThe following CPM network has estimates of the normal time in weeks listed for the activities: A(7) B(4) Node A B C D E F G C(2) D(5) F(2) Early Early Start Finish E(4) 1. Identify the critical path and show your answer. Please compute the early start, early finish, late start, late finish time for each node (activities) and Write your answer in the following table. (You may type your answer in a table in MS Word and then paste in the answer box below. Late Start Late Finish G (6) 2. What is the length of time to complete the project? 3. Which activities have slack, and how much?arrow_forwardThe following represent activities in a major construction project. Draw the network to represent this project. Activity Immediate Predecessor A - B - C A D B E B F C, E G D H F, Garrow_forward
- How does activities along the critical path of a network diagram impacts the project as a whole?arrow_forwardFind the following: 1- The optimum period and the corresponding time 2- The network plan detailed in the table below, noting that the additional cost is $ 1500 per week Activity Normal duration Normal cost Crash duration Crash cost weeks 2$ 2000 weeks 2$ 1-2 11 9. 10000 1-3 17 3000 14 12000 2-3 8. 6. 3600 6. 6000 3-4 6000 4 11000arrow_forwardSolve the following attached problem using PERT or CPM.arrow_forward
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