Operations Management: Sustainability and Supply Chain Management, Student Value Edition (12th Edition)
12th Edition
ISBN: 9780134163512
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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Check out a sample textbook solutionStudents have asked these similar questions
(a) The critical path for the network activities shown below is?
(b) What is the completion time in weeks?
Refer attached image
Activity
Preceding
Time
A
-
8
B
-
10
C
A , B
5
D
B
8
E
C , D
6
SUBJECT: SOFTWARE ENGINEERING
For a particular project, consider following list of Activities, their duration in Days and their Predecessor
Activity
Days
Precedents
a
3
-
b
15
A
c
5
A
d
60
A
e
6
D
f
40
B
g
10
c, e
h
7
F
i
6
G
j
12
h, i
By using network schedule technique, draw a Network Diagram of above enlisted activities.
Find Critical Path , earliest start, earliest finish , latest start and latest finish from Network Diagram.
The conditions and pert times for constructing a network diagram are given below.-Creation conditions:(0-1) It is the initial activity.(1-2) and (1-3) Activities begin together.It follows activity (2-4) (1-2), activity (3-4) (1-3), and ends together.( 4-5 ) It is the last activity.
a-Create the network diagram.b-Calculate the critical path and show it on the diagram.c- If the expiry time is extended by 15 days, how much will the probability of expiry increase?
Chapter 3 Solutions
Operations Management: Sustainability and Supply Chain Management, Student Value Edition (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
- A project is represented by the following diagram: 2. The critical path for the network shown is: A. 1-3-6-7. B. 1-2-4-7. C. 1-4-7. D. 1-3-4-7. E. 1-2-5-7.arrow_forwardDetermine the critical path after you have found ES, EF, LS, LF and slack. State the path and time expected to be taken.arrow_forwardFor the activity times and network model below, What is the expected completion time? ________ What is the critical path? ____________ Activity Time A 3 B 2 C 2 D 4 E 3 F 2arrow_forward
- Draw 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_forward1. Draw the network diagram and determine the critical path for the project below:arrow_forwardDraw a network diagram for the project. Find the minimum project completion time. Identify the critical activities and critical path.arrow_forward
- Make 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_forwardSuppose you are a project manager, and you have to manage a project with activities and their respective durations in weeks as listed in Table below. Construct a precedence network diagram to analyze your project. please do it hand writtenarrow_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_forward
- The following information is available about a project to organize an event to honor the mayor of West Allis at the Nathan Hale High School:a. Draw the network diagram. b. Find the critical path.arrow_forwardThe following information is available about a project to organize an event to honor the mayor of West Allis at the Nathan Hale High School: a. Draw the network diagram.b. Find the critical path.arrow_forwardBased on the table above, draw a complete Activity-in-the-Box network diagram using the ID's to represent each activity.arrow_forward
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