Computer-Based Construction Project Management 1st Edition Tarek Hegazy - Solutions

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Assume that there are multiple system test groups assigned to the project, working in parallel at various Softech facilities in the United States and at its international headquarters in Brussels. Determine the least-cost schedules for completing all the testing activities.
Refer to Table 7.2 and change the precedence relationships for each activity to those given below. Assuming that all other information is the same, obtain a crash curve similar to Figure 7.7.
There are several advantages to measuring progress toward completing a baseline schedule by asking team members to report the time remaining to complete individual tasks. Explain why this practice can help optimize a team's chances for success.
Explain how using a range of duration-based estimates, particularly in an engineering development project, helps a project team to highlight for senior management the uncertainty associated with preliminary schedules.
Budgeted contingen ies to avoid cost overruns can be determined by:(a) Applying a stan \ ard allowance.(b) Using past expdrience.(c) Calculating the knonetary value or impact of the sum total of the expected values of the most probable risk items.(d) All of the abov a 1.
Which of the following statements pertaining to how projects assess risk is not true?(a) Risk and uncertainty is related directly to the difference between the pessimistic 'and optimistic task completion estimates generated by project specialists.(b) Project manage 1, ent may chose to ignore the
Refer to the durations listed in Table 6.7 for to, t,, and t,.(a) Find the critical path(b) With 90% confidence, how long will the project last?(c) With what confidence level (probability) will the project be completed in 49 weeks?
Verify Eq. (6.11). If To = 90 days and P = 0.9, calculate ti and si.
An integrated circuit is to be fabricated. The time duration of each pass is 60 days. On the first pass, the probability of success is 30%;on the second pass, 60% ; and on the third and subsequent passes, 90%. Estimate the expected duration ti and the variance s 2i.
Consider taking a trip to visit a relative in another city..(a) If you were to take the train, how long would the trip take? Give an off-the-cuff estimate (b) Now size the trip's duration more carefully.Estimate the time to go from your house to the train station by taxi assuming that it happens
Use the information in Table 6.6 to solve the following:(a) Draw a precedence diagram(b) Determine the critical path(c) Draw a bar chart using early starts(d) How long does it take the Ready children to arrive at school?(e) What events lie along the critical path?(f) How would you shorten tasks,
Refer to Table 6.2. Assume that tasks 100, 110, and 300 have been completed, task 120 has two weeks of work remaining, and that no other project tasks have been initiated.(a) Determine the critical path(b) Calculate the time remaining in the project
In Figure 6.2, assume that activity A has been completed and that no other project activities have been started. Find the critical path and the project duration.
The purpose of preparing a project cost schedule is to:(a) Track the information contained in the work package levels of the project's work breakdown structure(b) Plot the percentage of work completed versus the capital in effort spent(c) Estimate required expenditures to support the business plan
Which of the following statements are true?(a) One can readily determine the precedence relationship between project activities by viewing a Gantt chart(b) A Gantt chart plots progress as a function of time(c) Gantt charts can be used to portray progress graphically against a baseline plan(d) Gantt
Which of the following describes the CPM scheduling technique?(a) Uses a deterministic algorithm to identify which sequences of project activities are the least flexible(b) Analyzes the early- and late-start and finish dates for each activity sequence to determine the project's duration(c)
Which of the following describes the PDM approach to scheduling?(a) Rectangular nodes, which represent activities, are connected to the nodes that succeed them in time(b) The technique is often used in the construction industry, where the duration of project activities is more certain(c)
A project's performance schedule is not used to:(a) Model day-to-day operation(b) Perform strategic planning(c) Prepare the WBS(d) Estimate project completion
Discuss the critical role played by the vice president in expediting the project schedule and mediating problems that arose from the conflicting design and marketing philosophies.
Why was it essential that the many engineering interfaces be formally integrated into one project plan that was agreed on by all responsible parties?
Describe how the project management team went about its task of facilitating the resolution of undetermined design issues.
Explain the impact of documenting changes to the program's technical design.
Did this information alter how the project would be brought to market?
What information did R&D learn from attending the meetings with the core and project support teams?
What mechanism would you enact to provide guidelines for documenting designs and driving their execution?
Why is it important to synchronize the various design and development activities?
What recommendations would you make to the project management team for overcoming the many technical barriers facing them?
How have communication barriers among the interfacing project groups contributed to the difficulties cited in the audit report?
Name at least four reasons why these top-notch designers might not succeed in developing the IRSS.
What major hurdles face the development team?
What would you recommend to the new vice president as a course of action for clarifying project objectives?
In your opinion, will Lutech's present organizational structure for the IRSS project enable the vice president to meet his market strategy?
A work breakdown structure can be prepared for home projects as well as corporate projects. Consider planning a four-week trip to the American Southwest. Design a WBS having no more than five levels.
On many projects only the project manager and a few functional managers know the true schedule and have a copy of the project plan.Discuss the disadvantages and advantages of such a procedure.
Engineers and managers often state that they cannot accurately estimate the cost of an R&D project since they have not done the work.(a) What impact does such a statement have on the project's master budget?(b) What techniques can be used to estimate the cost of a project more accurately?
One of the engneering groups on the project team is trying to perfect its subsystem beyond what the technical specifications require. Explain how to handle the situation if the subsystem is:(a) On the critical path(b) Not on the critical path
Your development team has just shared their detailed design estimates with the project team, and the project now faces a three-month delay.The team estimates that critical activities cannot be completed without jeopardizing the originally scheduled market introduction date.(a) Consider and list
Explain how your project team would use a project network to:(a) Model the sequence of day-to-day project activities(b) Review performance.(c) Perform operational planning.
You are a newly promoted project manager at Airlink Fare, an international camer with aviation routes throughout the United States, Central and South America, Canada, Europe, and Asia.. Your first assignment is to engage a value engineering team in the redesign of the passenger check-in and
As a senior member of Midland Bank's steering committee for new program development, what recommendations would you make to the project team developing a home banking application? The target customer market includes expert and novice users of personal computing technology who already own one or
Review the research findings in Section
EQS Computing's newly assigned core team is challenged with deciding the technical design for a new portable computer that has enough functionality to satisfy the needs of the mobile business executive. Representatives from marketing have recorded and ranked the priority of customer needs in a QFD
Quality, cost, timeliness, and product value are often viewed as conflicting values that require project teams to trade-off when reducing product development cycles. Explain why it's easier to earn customer loyalty and gain market share by bringing a desirable product to market first than to win
Explain how using common or structured development methodologies can influence the length of the concept-to-customer (CTC)interval of a new product or service development.
Faster new product development can be achieved by:(a) Eliminating dead time or delays between phases of the NPD cycle(b) Performing tasks in parallel(c) Eliminating non-value-adding product and service features through value engineering(d) Designing systems using quality function deployment
The rapid pace of technological advancements has changed the time that organizations can spend developing products and services to introduce into today's markets. Which of the following might inherently delay the cycle time of an NPD project?(a) Relative newness of the technology under development
Explain why the waterfall approach is no longer an accepted methodology among hardware and software system developers.
True or false? The project team should wait until the project has been well defined before planning the development phase of its life cycle.
Which of the following does not have a positive influence on project performance?(a) Application of a common or structured development methodolon(b) Rapid deployment of development resources during the design phase of a project(c) Use of a panel to learn the voice of the customer and influence
The amount of planning performed on a project must be commensurate with:(a) The scope of the work(b) The information available to size and estimate the work(c) The project manager's authorization(dl (a) and (b)(e) All of the above
Project scope management includes the processes required to ensure that a project includes all the work, and only the work, required to complete the project successfully. Which of the following are not inputs to a scope management plan for the project?(a) Product specifications(b) Product
Explain possible drawbacks to contingency planning and what other management techniques might be used as strategies to control inherent risks associated with realizing project objectives.
Your project team is estimating the cost of developing a new applications program to manage a communications device. The loaded cost, including personnel and all resources, is estimated at $1 million.(a) List at least five probable risks that a project this size might experience.(b) How much money
Contingency planning is an amount of money, time, personnel, and other resources added to each activity estimate to cover all of the following except:(a) Errors in estimating(b) Changes in design(c) Expediting the work(d) Uncertainties in estimating resources(e) Fluctuations in currency
Good project planning includes nine required steps. List at least six of the nine steps used to plan a project.
Explain why each of the following is a potential cause of project failures.(a) Only the senior-most levels of the organization understand the business strategies of the project.(b) A planning group performs all the planning functions, directing how functional organizations complete project
Review Section
Which of the following statements is not true?(a) The purpose of strategic and tactical planning is to identify specific efforts that project-level managers undertake to achieve strategic goals.(b) Business objectives and the project's planning, scheduling, tracking, and team building approach are
Describe briefly how project management has accountability for realizing the business strategy of the organization
Classify each planning activity as either a strategic, tactical, or operational process.(a) Planning the five-year research and development program for a major laboratory(b) Planning a project budget(c) Scheduling the task durations for a software development project(d) Defining the architecture of
Describe the culture of the original organization and its changes. How were these changes in culture initiated and sustained?
What factors helped the XB1 team to integrate project objectives and specifications?
What problems continue to plague the XB1 project?
What are some of the indications that the traditional vertical hierarchy may not be adequate for managing this project?
How do these problems compare or relate to the reasons for project failure?
What were the difficulties and challenges facing the XB1 project manager and his immediate project office?
8. Using the Excel program Bidding.xls for bidding strategy and the data of the solved problem in Section 9.5, try to determine the optimum markup using Solver to maximize the expected profit. Using the formulation on the sheet, set up Solver for optimizing the markup based on Friedman's and Gates'
7. The previous records of past bids against four key competitors is in the following table:Job Contractor's Bid Price of Competitors ($)No. Cost Estimate ($) A B C D 1 1,550,000 1,900,000 UOO,OOO U50,000 2 2,000,000 2,000,000 2,200,000 3 1,300,000 1,500,000 1,400,000 1,650,000 1,550,000 4
6. Analysis of the bidding behavior of a typical competitor against you, as a contractor, has revealed that his bid/your cost in ten previous bids take the following histogram.No.of Bids 42 3o 1 1.04 1.08 1.12 1.16 1.2 1.24 B/C Ratioa. Based on that behavior, what is the markup value that this
5. Assume that a typical competitor has a B/C ratio with a = 0.07.Also, assume that the markups associated with a 23%probability of beating seven typical competitors is 6.5%using Friedmans model. Calculate the average markup used by this competitor in any bid.
4. If a typical competitor has a B/C ratio with I-L = 1.05 and a = 0.09, what is the mark up associated with a 30%probability of beating four typical competitors?
3. Your company is very keen on winning a job for which you submitted Cl bid of$1,100,000.Your cost estimate for the job is about $1,000,000.After the bid opening, your company, and two others, is selected for final negotiation with the owner. At BIDDING STRATEGY AND MARKUP ESTIMATION I 255 that
When the (J" of the B/C ratio of a competitor is small, winning this competitor becomes easier to predict.Friedman's model uses a pessimistic strategy whereas Gates's model uses an optimistic strategy.In case of high project risk, the use of Gates's model is more appropriate than Friedman's.You
2. Briefly explain if the following statements are right or wrong and why?
1. The previous record of a contractor's bidding encounters against three competitors is:Job Contractor's Cost Bid Price of Competitors ($ millions)No. Estimate ($ millions) A B C--------1 0.85 1.05 1.1 0.95 2 1.6 2.1 1.8 1.6 3 0.7 0.9 4 2.0 2.4 2.2 Using Friedman's and Gates's models, determine
9. The duration and direct-cost data for an activity-an-arrow network is given in the following table. Any duration between the normal duration and the crash duration is possible for each activity. Indirect costs are equal to 200 cost units + 50 cost units per day. Draw the CPM network and
8. Draw the precedence diagram for the following data:Duration (days)Cost Slope Activity Followed by Normal Minimum $/day A B, E, F 7 5 200 8 K 9 5 450 C H,D 8 7 400 0 I, N 11 4 100 E G,M 9 6 400 F L 8 7 500 G C 7 5 200 H I,N 6 2 200 I 12 9 200 J E,F 10 8 600 K G 14 10 350 L M 18 16 700 M C 9 8 550
7. Cost and schedule data for a small project are given below. Assume an indirect cost of $200/day. Develop the time-cost curve for the project and determine the minimum contract duration.Cost ($) Duration (days)Activity Preceded by Crash Normal Crash Normal A 3900 3600 6 7 8 A 6500 5500 3 5 C 8
7 Normal Normal Crash Crash Cost Activity Duration Cost Duration Cost Slope!A 7 15000 7 15000 B 3 6000 3 6000 C 4 8000 3 8500 D 8 16000 8 16000 E 7 15000 7 15000 F 1 2000 1 2000 G 9 18000 7 19000 H 7 15000 7 15000 I 4 8000 4 8000 J 6 12000 4 15000 K 5 10000 4 11000 RESOURCE MANAGEMENT: PART 2 I 235
6. The data of a small project is shown below. Assuming a $1,000/ day indirect cost, determine: (a) the optimum project duration that minimizes total project cost; and(b) the optimum strategy to meet an IS-day deadline.~ []]l]5 H 1241241[QIQ] A [2illJ [I@] 9 6 I 11Gr-[IT!] 0 Ilf' G
Critical activities can be shortened.y N N
Activities can split,
Objective isto reduce resource fluctuation,
Objective isto minimize total project cost(direct + indirect),
Objective isto reduce project delay.
Noncritical activities are affected.
Moments are calculated,
Critical activities are affected,
Activities can be delayed beyond their float,
Project can be delayed.
Resourcesare limited.
5. In performing the three aspects of resource management, individually, complete the following table to describe the characteristics of each technique:Allocation TCT Leveling
4. The following table gives the activities involved in a small contract under both normal and crash conditions. The indirect cost for this contract is $250/week. The contract conditions state that the contractor will pay $200/week for delays by his own fault.Duration (week) Cost ($)Activity
3. The following tasks are part of a network and are the only ones available for crashing.Which one would you start with and why?ES LF Duration Cost/day ABC 518 15 10 14 6$4$8$12 20 32 21
2. If the cost slope of an activity is $100/day; the maximum crashing possible for the activity is 5 days; and its crash cost is $2,000, what is its normal cost?
1. Discuss, with the help of a simple diagram, the activity time-cost relationship.
9. A network for a small project is shown below.(duration, men) ~\ A (7,7)[2lQ]H (7,5)[ill]D 8,6 E (7,5)WIQJ ~ 9 8(3,5) ~ 1(4,10c;f C (4,6)\..::../ ~~ K (5,9) oG(9,4) .~~ 8~ ~ C±TIJ [i]J]a. Develop a resource schedule using a limit of 15 men/ day.b. Solve the problem using Microsoft Project and
8. A network for a small project is shown below.@@}----'-'---'-~ 5 Activity (duration, men)C(5,8) 1(3,7)a. Develop a resource schedule using a limit of 20 men.b. Solve the problem using Microsoft Project and show total project duration. Attempt to reduce project duration by assigning random
7. A network for a small project is shown below with activity duration and required number of laborers. During the first 10 days of the project, the contractor has a maximum of four laborers. Afterwards, a subcontractor will be employed to relieve the work force.A d=1, r=3 J5,3a. Use the early
6. Consider the following project.Resources Duration Plumbers Labors 4 2 3 3 1 6 1 3 8 3 4 7 1 2 3 5 9 1 2 5 2 4 4 2 4 2 3 Activity Predecessor ABCDEFG HI JBBC AD EE F, Ia. Eleven plumbers and nine labors are available for the project. Both resources must work at the same time when assigned to the

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Computer-Based Construction Project Management 1st Edition Tarek Hegazy - Solutions

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