Exam 10: Project Scheduling: Lagging, Crashing, and Activity Networks

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The process of accelerating a project is referred to as:

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D

   -Use the Gantt chart and the activity list to determine when resource 5 is free.  \begin{array} { | l | l | l | l | }  \hline \text { Activity } & \text { Resources } & \text { Activity } & \text { Resources } \\ \hline \mathrm { A } & 1 & F & 1 \\ \hline \mathrm { B} & 5 & \mathrm {  G } & 2 \\ \hline \mathrm {  C } & 4 & \mathrm { H } & 5 \\ \hline \mathrm { D } & 3 & \mathrm {~J} & 3 \\ \hline \mathrm { E } & 2 & \mathrm {~K} & 4 \\ \hline \end{array} -Use the Gantt chart and the activity list to determine when resource 5 is free. Activity Resources Activity Resources 1 F 1 5 2 4 5 3 3 2 4

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D

If an activity's cost is plotted against its duration on axes with zeros at the origin:

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The most common type of logical sequencing between tasks is referred to as the:

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Sketch the network described in the table in AOA format. Activity Predecersar -

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The fastest completion time for this project is: The fastest completion time for this project is:

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Determine early start and early finish times for all activities in this network.Activity duration in days appears under each arrow. Determine early start and early finish times for all activities in this network.Activity duration in days appears under each arrow.

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The least common type of lag relationship occurs when a successor's finish is dependent upon a predecessor's start.

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The most common method for shortening activity durations involves the decision to:

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The AOA network described by this table needs: Activity Predecessor -- -- A, B ,

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Quite often the marginal gains in employee productivity decrease dramatically with the increased use of overtime.

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The BEST approach to network representation of a large and hugely complex project is to:

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   -Use the Gantt chart and activity list to determine which resource is used the least.  \begin{array} { | l | l | l | l | }  \hline \text { Activity } & \text { Resources } & \text { Activity } & \text { Resources } \\ \hline \mathrm { R } & 3,5 & \mathrm { M } & 1,2 \\ \hline \mathrm { H } & 1 & \mathrm {~K} & 4 \\ \hline\mathrm { G } & 2,5 & \mathrm {~J} & 3 \\ \hline \mathrm { F } & 4,1 & \mathrm { P } & 1 \\ \hline\mathrm {B } & 2 &\mathrm {S } & 3,4 \\ \hline \mathrm { T } & 2 & \mathrm { W } & 3 \\ \hline \end{array}   -Use the Gantt chart and activity list to determine which resource is used the least. Activity Resources Activity Resources 3,5 1,2 1 4 2,5 3 4,1 1 2 3,4 2 3

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What is the minimum completion cost of this project if there is a penalty of $1,000 for each day the project lasts longer than 27 days? Activity durations in days and crash costs in dollars are given in the table. Reg Crash Reg Crash Reg Crash Reg Crash Activity Length Length Cost Cost Activity Length Length Cost Cost 7 6 400 1,200 7 5 800 1,500 1 1 450 450 6 5 500 1,250 9 6 550 2,350 4 4 600 600 9 7 500 1,650 10 8 450 1,350 2 1 600 1,800 8 6 675 1,750  What is the minimum completion cost of this project if there is a penalty of $1,000 for each day the project lasts longer than 27 days? Activity durations in days and crash costs in dollars are given in the table.   \begin{array}{|l|l|l|l|l|l|l|l|l|l|} \hline&\text { Reg } & \text { Crash }& \text { Reg } &\text { Crash }&&\text { Reg } & \text { Crash }& \text { Reg } &\text { Crash } \\  \text { Activity }&\text {Length  }&\text {Length  }&\text {Cost }& \text { Cost }&\text { Activity }&\text { Length }&\text { Length }&\text {Cost  }&\text {Cost }\\ \hline \mathrm{A} & 7 & 6 & 400 & 1,200 & \mathrm{L} & 7 & 5 & 800 & 1,500 \\ \hline \mathrm{C} & 1 & 1 & 450 & 450 & \mathrm{N} & 6 & 5 & 500 & 1,250 \\ \hline \mathrm{D} & 9 & 6 & 550 & 2,350 &\mathrm{R} & 4 & 4 & 600 & 600 \\ \hline \mathrm{E} & 9 & 7 & 500 & 1,650 & \mathrm{S} & 10 & 8 & 450 & 1,350 \\ \hline \mathrm{J} & 2 & 1 & 600 & 1,800 & \mathrm{Y} & 8 & 6 & 675 & 1,750\\ \hline   \end{array}

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  -What is the late finish for activity D in the network shown in the diagram? -What is the late finish for activity D in the network shown in the diagram?

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What is the duration of the project shown in the network?

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A project has the activity duration and cost information indicated in the table where all times are in weeks.What is the lowest total cost for completing this project in 35 days? Activity Predecessor Normal Time Normal Cost Crash Time Crash Cost A -- 8 \ 12,000 5 \ 22,000 A 12 \ 18,000 9 \ 32,000 C A 15 \ 22,000 9 \ 62,000 3 \ 9,000 2 \ 18,000 C 9 \ 15,000 5 \ 35,000 7 \ 5,000 5 \ 8,000 8 \ 13,000 6 \ 23,000 12 \ 20,000 8 \ 32,000 6 \ 45,000 4 \ 56,000

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Brook's Law states that the typical crashing decision to add more resources to an activity only delays the activity further.

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Gantt charts cannot depict float.

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   -Use the Gantt chart and the activity list to determine which resource is needed earliest in this project.  \begin{array} { | l | l | l | l | }  \hline \text { Activity } & \text { Resources } & \text { Activity } & \text { Resources } \\ \hline\mathrm {  A } & 1 & F & 2 \\ \hline\mathrm {  B }& 3 &\mathrm {  G } & 3 \\ \hline \mathrm {  C } & 4 & \mathrm { H } & 4 \\ \hline \mathrm { D } & 2 & \mathrm {~J} & 5 \\ \hline \mathrm { E } & 2 & \mathrm { K} & 1 \\ \hline \end{array}     -Use the Gantt chart and the activity list to determine which resource is needed earliest in this project. Activity Resources Activity Resources 1 F 2 3 3 4 4 2 5 2 1

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