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Case study on conveyor belt

22/10/2021 Client: muhammad11 Deadline: 2 Day

Conveyor Belt Project

Part 1

Project Description

The new computer-controlled conveyor belt is an exciting project that moves and positions items on the conveyor belt within <1 millimeter. The project will produce a new system for future installations, and for replacement of those in the field, at a low cost. The computer-controlled conveyor belt has the potential to be a critical unit in 30 percent of the systems installed in factories. The new system is also easier to update with future technologies.

The Project Priority Matrix for the Conveyor Belt Project (CBP) is:

Time

Scope

Cost

Constrain

X

Enhance

X

Accept

X

Table A2.9 has been developed for you to use in completing the project exercises.

TABLE A2.9 Conveyor Belt Project; WBS

Conveyor Belt Project

Hardware

Hardware specifications

Hardware design

Hardware documentation

Prototypes

Order circuit boards

Assemble preproduction models

Operating system

Kernel specifications

Drivers

Disk drivers

Serial I/O drivers

Memory management

Operating system documentation

Network interface

Utilities

Utilities specifications

Routine utilities

Complex utilities

Utilities documentation

Shell

System integration

Architectural decisions

Integration first phase

System hard/software test

Project documentation

Integration acceptance testing

Assignment

Develop the WBS outline using the software available to you.

Question

Does this information (WBS) allow you to define any milestones of the project? Why or why not? What are they?

Remember: Save your file for future exercises!

Page 627

Part 2

Use your file from Part 1 and the information provided below to complete this exercise. (See Table A2.10 .)

TABLE A2.10 Conveyor Belt Project; Schedule

Activity

Description

Resource

Duration (days)

Preceding Activity

1

Architectural decisions

Design

25

2

Hardware specifications

Development, design

50

1

3

Kernel specifications

Design

20

1

4

Utilities specifications

Development, design

15

1

5

Hardware design

Design, development

70

2

6

Disk drivers

Assembly, development

100

3

7

Memory management

Development

90

3

8

Operating system documentation

Design, documentation

25

3

9

Routine utilities

Development

60

4

10

Complex utilities

Development

80

4

11

Utilities documentation

Documentation, design

20

4

12

Hardware documentation

Documentation, design

30

5

13

Integration first phase

Assembly, development

50

6,7,8,9,10,11,12

14

Prototypes

Assembly, development

80

13

15

Serial I/O drivers

Development

130

13

16

System hard/software test

Assembly

25

14,15

17

Order circuit boards

Purchasing

5

16

18

Network interface

Development

90

16

19

Shell

Development

60

16

20

Project documentation

Documentation, development

50

16

21

Assemble preproduction models

Assembly, development

30

17F-S, lag 50 days

22

Integrated acceptance testing

Assembly, development

60

18,19,20,21

Note: F-S refers to a Finish-to-Start lag.

1. Each work package will represent an activity.

2. The project begins January 4, 2010.

3. The following holidays are observed: January 1, Memorial Day (last Monday in May), July 4th, Labor Day (first Monday in September), Thanksgiving Day (4th Thursday in November), December 25 and 26.

4. If a holiday falls on a Saturday then Friday will be given as an extra day off, and if it falls on a Sunday, then Monday will be given as a day off.

5. The project teams work eight-hour days, Monday through Friday.

Warning: Experience has taught students to frequently make separate backup files for each exercise. The software is never as friendly as users expect!

Construct a network schedule for the conveyor belt project and prepare a memo that addresses the following questions:

1. When is the project estimated to be completed? How long will the project take?

2. What is the critical path(s) for the project?

3. Which activity has the greatest amount of slack?

4. How sensitive is this network?

5. Identify two sensible milestones and explain your choices.

6. Compare the advantages/disadvantages of displaying the schedule as a network versus a Gantt chart.

Page 628

Include the following printouts:

· A Gantt chart.

· A network diagram highlighting the critical path.

· A schedule table reporting ES, LS, EF, LF, and slack for each activity.

Hint: the project should be completed in 530 days.

Remember: Save your file for future exercises!

Part 3

Remember the old saying, “A project plan is not a schedule until resources are committed.” This exercise illustrates this subtle, but very important, difference.

Part A

Using your files from Part 2 input resources and their costs if you have not already done so. All information is found in Tables A2.10 and A2.11 .

TABLE A2.11 Organization Resources

Name

Group

Cost ($/hr)

Design

R&D (2 teams)

$100

Development

R&D (2 teams)

70

Documentation

R&D (1 team)

60

Assembly/test

R&D (1 team)

70

Purchasing

Procurement (1 team)

40

Page 629

Prepare a memo that addresses the following questions:

1. Which if any of the resources are overallocated?

2. Assume that the project is time constrained and try to resolve any overallocation problems by leveling within slack. What happens?

3. What is the impact of leveling within slack on the sensitivity of the network?

Include a Gantt chart with the schedule table after leveling within slack.

4. Assume the project is resource constrained and resolve any overallocation problems by leveling outside of slack. What happens? What are the managerial implications?

5. What options are available at this point in time?

Include a Gantt chart with the schedule table after leveling outside of slack.

Note: No splitting of activities is allowed.

Note: No partial assignments (e.g., 50 percent). All resources must be assigned 100 percent.

Part B

When you show the resource-constrained network to top management, they are visibly shaken. After some explanation and negotiation they make the following compromise with you:

· The project must be completed no later than February 2, 2012 (530 days).

· You may assign two additional development teams.

· If this does not suffice, you may hire other development teams from the outside. Hire as few external teams as possible because they cost $50 more per hour than your inside development people.

Internal Development

Add as many development units (teams) as needed to stay within the 530 days. If you need more than two internal development units, then hire as few external teams as necessary. Select the cheapest possibility! Change as few activities as possible. It is recommended you keep work packages which require cooperation of several organizational units inside your company. You decide how best to do this.

Hint: Undo leveling prior to adding new resources.

Once you have obtained a schedule that meets the time and resource constraints, prepare a memo that addresses the following questions:

1. What changes did you make and why?

2. How long will the project take?

3. How did these changes affect the sensitivity of the network?

Include a Gantt chart with a schedule table presenting the new schedule.

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