CS 362 assignment 3
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School
Oregon State University, Corvallis *
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Course
362
Subject
Industrial Engineering
Date
Dec 6, 2023
Type
Pages
4
Uploaded by BrigadierPorpoise3142
Question 1a)
Draw a bar chart showing the project schedule using the following information
Answer the chart:
Question 1b)
Assuming unlimited personnel, what is the total duration for all Tasks given in la to
complete, i.e. the total duration for the project from day 0 to day X, where X is the day when the last
Task(s) complete? Note that this unit is in days and is not merely the sum of the Duration column.
Answer: 100 days
Question 1c)
For the project given in 1a and 1b, if T1 takes 30 days to complete, T2 takes 5 days to
complete, and all other Tasks stay the same, what is the total duration for all Tasks to complete? This
must also be given in days.
Answer:
120 days
Question 2)
Cost estimates are inherently risky, regardless of the estimation technique used. Suggest four
ways/methods/practices/techniques in which risks in a cost estimate can be reduced.
1.
Utilize a phased approach: By breaking down the project into smaller, more manageable
phases, you can better control costs and reduce the risk of significant cost overruns. This
phased approach also allows for more frequent review and adjustment of cost estimates,
which can help to identify and address potential risks before they become bigger
problems.
2.
Use a combination of estimation techniques: By using a combination of estimation
techniques, such as top-down, bottom-up, and expert judgment, you can gain a more
comprehensive understanding of the costs involved in a project and reduce the risk of
relying on a single source of information.
3.
Regularly monitor and adjust cost estimates: Regular monitoring of cost estimates can
help to identify and address potential risks before they become bigger problems. This
should involve regular communication with key stakeholders, including suppliers,
contractors, and internal teams, to ensure that all necessary information is taken into
account when making adjustments to cost estimates.
4.
Use multiple estimation methods: By using multiple estimation methods, you can
cross-check your results and reduce the risk of relying on a single source of information.
For example, you can use both bottom-up and top-down estimation methods to gain a
better understanding of the costs involved in a project.
Question 3
Explain why a cost estimate should be adjusted based on personnel and organizational/company factors:
in other words, how do personnel and organization/company factors affect cost estimates?
Answer:
For a variety of reasons, personnel and organizational/company characteristics can significantly
affect cost estimates.
-
Personnel qualifications: The qualifications of the workforce can influence the
effectiveness and caliber of the work, which in turn can influence the project's cost. For
instance, a highly skilled worker might be able to finish a task faster and with fewer
errors, lowering the project's overall cost.
-
Manpower availability: The cost and schedule of a project can be impacted by a project's
personnel availability. The project may need to be postponed if critical individuals are not
available, or extra staff may need to be employed, which will raise the project's cost.
-
Organizational processes and procedures: By affecting the effectiveness and efficiency of
the work, organizational processes and procedures can have an impact on a project's cost.
For instance, a business with established procurement procedures may be able to buy
goods more rapidly and for less money, bringing down the project's overall cost.
-
Company culture and values: By influencing staff engagement and motivation, company
culture and values can have an impact on project costs. For instance, a business with an
innovative and creative culture might be able to come up with more affordable solutions
to problems that crop up during a project.
The efficiency and efficacy of the work, which might affect the cost of a project, can be greatly
impacted by organizational and company characteristics, which are crucial to take into account
when developing cost estimates.
Question 4a)
In a project consisting of 6,600 lines of code, estimate the effort in person-months, assuming
each developer creates an average of 600 lines of code per month.
Answer: 11
6600/600 = 11(people)
Question 4b)
For the project described in 4a, estimate the total cost assuming each developer costs on
average $7000 per month (and ignoring other costs like overhead, how many developers can actually
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work on the project at once, etc.).
Answer: 77000
7000*11= 77000(cost project average per month)
Question 4c)
Assuming that only 3 developers can work at once on the project specified in 4b and 4c,
what is the total duration in months? Hint: the answer is not 11 months.
Answer: 3.67 months
6600/(3*600)= 3.67(total line/ 3 developers times 600 line of code per month)