Operations Management - CD - Access
11th Edition
ISBN: 9780133408027
Author: HEIZER
Publisher: PEARSON
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Chapter 3, Problem 16P
Assume that the activities in Problem 3.15 have the following costs to shorten: A, $300/week; B, $100/week; C, $200/week; E, $100/week; and F, $400/week. Assume also that you can crash an activity down to 0 weeks in duration and that every week you can shorten the project is worth $250 to you. What activities would you crash? What is the total crashing cost?
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The company decided that the project in the previous problem has to be expedited in order to optimize (minimize) the project cost. Expediting can be used to trade direct cost for indirect cost, since expediting the project reduces the indirect cost of the project by a fixed amount per day, while expediting an activity increases its total direct cost. The Accounting Department found that indirect costs amount to $100 per day, while activity direct costs as well as their normal and expedited times are given in the table below.
Activity
Normal
Time
(days)
Expedited
Time
(days)
Normal
Cost
($)
Expedited
Cost
($)
A
32
26
200
500
B
21
20
300
375
C
30
30
200
200
D
45
40
200
800
E
26
20
700
1,360
F
28
24
1,000
1,160
G
20
18
400
550
From this table you can compute the direct cost incurred by expediting an…
1. What’s the maximum amount of time that activity G can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value).
2.What’s the maximum amount of time that activity A can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value)
3. What’s the maximum amount of time that activity H can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value)
1.What’s the maximum amount of time that activity F can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value).
2. What’s the maximum amount of time that activity D can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value).
3.What’s the maximum amount of time that activity C can be delayed without delaying the whole project? (Whole number, no space, no commas, no decimal value).
4. What’s the earliest expected time, in months, to finish the project? (Whole number, no space, no commas, no decimal value).
Chapter 3 Solutions
Operations Management - CD - Access
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 - The work breakdown structure (WBS) for building a...Ch. 3 - 3.2 Robert Day has decided to run for a seat as...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 - Stephen Hall is developing a program in supply...Ch. 3 - Task time estimates for the modification of an...Ch. 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 - The activities needed to build a prototype laser...Ch. 3 - Dave Fletcher (see Problem 3.10) was able to...Ch. 3 - The activities described by the following table...Ch. 3 - A renovation of the gift shop at Orlando Amway...Ch. 3 - Kelle Carpet and Trim installs carpet in...Ch. 3 - The following is a table of activities associated...Ch. 3 - Assume that the activities in Problem 3.15 have...Ch. 3 - Bill Fennema, president of Fennema Hospitality,...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 - 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 - Clark Products makes pizza ovens for commercial...Ch. 3 - The Tesla 6 is a new custom-designed sports car....Ch. 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
- Project crashing is when you shorten the duration of a project by reducing the time of one or more tasks. Crashing is done by increasing the resources to the project, which helps make tasks take less time than what they were planned for. Of course, this also adds to the cost of the overall project. Therefore, the primary objective of project crashing is to shorten the project while also keeping costs at a minimum. What are the different options for crashing an activity when resources are not constrained ?arrow_forwardYou are the project manager of the BTU AVIC project in Bolgatanga. As a result of the ongoing pandemic, you are responsible to ensure the project does not overly delay among other objectives. Required:a. Discuss five strategies for reducing the critical path of the BTU AVIC project.b. Explain five ways you can resolve the problem of resource allocation on the project. c. Using the Four-Stage Process of risk management discuss how risks could be managed on the ongoing BTU AVIC project. Identify three potential categories of team conflicts and how you will resolve such conflictsarrow_forwardThe following criteria is NOT being considered for crashing an activity or the entire project.a) The amount by which an activity is crashed is, in fact, permissible.b) Taken together, the shortened activity durations will enable us tofinish the project by the due date.c) Urgent activities take priority considerations for crashing.d) The total cost of crashing is as small as possible.arrow_forward
- If the company wants to complete the project in 40 weeks,which activities should be crashed? Calculate the additional costincurred to complete the project in 40 weeks.arrow_forwardBased on the information below, prepare a comprehensive report that includes the following: Normal completion time and accelerated completion time Steps that can be taken to crash the project to the shortest time at the lowest cost. Hint: Determine each step's cost and the duration of the project at that stage. Your insights on the cost-time trade-off for this project. Your recommended strategy for crashing the project.arrow_forwardProject Scope Management includes the processes required to ensure that the project includes all the work required, andonly the work required, to complete the project successfully (Project Management Institute, 2017:129).By referring to the project scope management process, discuss how the case study project scope could have been definedmore efficiently by specifically referring to plan scope management.arrow_forward
- Consider the following network for conducting a two-week (10 working days) computer training class: please refer to the picture I uploaded Find the crash cost per day. Which activities should be crashed to meet a project deadline of 10 days with a minimum cost? Assume partial crashing. Find the new cost. Is partial crashing an appropriate assumption in this kind of project?arrow_forwardThe company decided that the project in the previous problem had to be expedite in order to optimize (minimize) the project cost. Expediting can be used to trade direct cost for indirect cost, since expediting reduces the indirect cost of the project by a fixed amount per day, while expediting an activity increases its total direct cost. The Accounting Department found that indirect costs amount to $100 per day, while activity direct costs as well as their normal and expedited times are given in the table below. Activity Duration (Days) Expedited Time (Days) Normal Direct Cost ($) Expedited Direct Cost ($) A 32 26 200 500 B 21 20 300 375 C 30 30 200 200 D 45 40 200 800 E 26 20 700 1,360 F 28 24 1,000 1,160 G 20 18 400 550 What is the optimal time to complete the project? What is the optimal project cost?arrow_forwardYou are in charge of a project. Your team has determined that there are 7 activities to be completed. Here are the activities, the time to complete the activity and the immediate predecessor of the activity. Using this data 1) construct a Gantt Chart, 2) determine the time it will take to complete the project, 3) You are monitoring the progress of this project and discover that activity C is in danger of taking longer than planned due to funding issues. What options do you have to get the project back on track? Activity Time Immediate Predecessor A 10 Weeks None B 6 Weeks A C 7 Weeks A D 6 Weeks B E 8 Weeks C F 3 Weeks D G 4 Weeks Farrow_forward
- If Activity C has an expected time estimate of 8 days, which of the following statements is TRUE? * The activity time estimates for Activity C are: 1, 7, and 19 days Activity C can be delayed for a maximum of 5 days Activity C should not be delayed The activity time estimates for Activity C are: 2, 4, and 9 daysarrow_forwardYou manage a project with 10 activities. Activities A1, A3, A5, and A9 form the critical path.Because you have a large budget for the project, you consider crashing activity A2, which hasthe potential to shorten the time of A2 by three days. What do you think about this opportunity?a. It is a good idea because it will reduce the project duration by three days.b. It is a bad idea because A2 is not on the critical path.arrow_forwardYour project to obtain charitable donations is now 30 days into a planned 40-day project. The project is divided into three activities. The first activity is designed to solicit individual donations. It is scheduled to run the first 25 days of the project and to bring in $25,000. Even though we are 30 days into the project, we still see that we have only 90 percent of this activity complete. The second activity relates to company donations and is scheduled to run for 30 days starting on day 5 and extending through day 35. We estimate that, even though we should have 83 percent (25/30) of this activity complete, it is actually only 50 percent complete. This part of the project was scheduled to bring in $150,000 in donations. The final activity is for matching funds. This activity is scheduled to run the last 10 days of the project and has not started. It is scheduled to bring in an additional $50,000. So far, $175,000 has actually been brought in on the project. Calculate the Schedule…arrow_forward
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