TBPPE: Time

Question 1

Time (Scheduling) Management Step - Sequence Activities:

Answer 1

Identify and document the logical relationships between project activities

Question 2

Time (Scheduling) Management Step - Estimate Activity Durations

Answer 2

Estimate the time required to complete each activity in the project

Question 3

Time (Scheduling) Management Step -Develop Schedule:

Answer 3

Calculate the start and end times of the project activities and establish the overall project schedule baseline

Question 4

Time (Scheduling) Management Common Tools:

Answer 4

1) Network Diagram
2) Gantt Chart
3) Project Calendar
4) Milestones

Question 5

Network Diagram:

Answer 5

Shows the chronological relationship between scheduled activities (tasks) (which are typically derived from the WBS

Question 6

Network Diagram - Early State (ES):

Answer 6

The earliest possible date on which an activity can start

Question 7

Network Diagram - Late Start (LS):

Answer 7

The latest possible date that an activity may begin without delaying the project (or a milestone)

Question 8

Network Diagram - Merge Activity:

Answer 8

An activity with two or more immediate predecessors (tasks flowing in)

Question 9

Network Diagram - Burst Activity:

Answer 9

An activity with two or more immediate predecessors (tasks flowing out)

Question 10

Network Diagram - Float (aka Slack, Total Float):

Answer 10

The amount of time an activity may be delayed from its early start without delaying the finish of the project. Float = (LS-ES) or (LF-EF)

Question 11

Uses of Network Diagram Step - Forward Pass:

Answer 11

By path, start at the beginning, add all durations together. Result: Duration of project

Question 12

Uses of Network Diagram Step - Backward Pass:

Answer 12

By path, start at the end, subtract all durations. Result: Float

Question 13

Uses of Network Diagram Step - Path Analysis:

Answer 13

By path, review each path for least amount of float. Result: Critical path

Question 14

3 Steps to apply the Forward Path:

Answer 14

1) Add all activity times along each path as moving forward (ES + Duration = EF)
2) Carry the EF time to the activity nodes immediately succeeding the recently completed node. The EF becomes the ES of the next node.
3) If the succeeding node is a merge point, the largest preceding EF becomes the ES for that node.

Question 15

3 Steps to apply the Backward Path:

Answer 15

1) Subtract activity times along each path as moving backward (LF - Duration = LS)
2) Carry back the LS time to the activity nodes immediately preceding the recently completed node. The LS becomes the LF of the next node.
3) If the preceding node is a burst point, the smallest succeeding LS becomes the LF for that node

Question 16

Critical path :

Answer 16

1) Path with the least floor path with the least float/slack time
2) Longest of all paths through the project
3) Gives the amount of scheduling flexibility

Question 17

Common options to shorten the Project/Reduce the Critical Path:

Answer 17

1) Eliminate tasks on the critical path
2) Re plan serial paths to become parallel
3) Shorten the duration of critical path tasks or of early tasks
4) Shorten longest tasks
5) Shorten easiest tasks
6) Shorten tasks that cost the least to speed up

Question 18

Gantt Charts Milestones:

Answer 18

1) Activities of “zero duration”
2) Take no time and consume no resources
3) Record significant events or deliverables
4) Serve as reminder to check on overall project status at key points

Question 19

Common Options typically applied to accelerate (crash) a Project:

Answer 19

1) Improve productivity of existing project resources
2) Change working methods employed
3) Reduced scope
4) Fast Track the project
5) Overtime work
6) Add resources to the Project Team

Question 20

Decision and Cost of accelerating a project is a Cost-Benefit Trade-off decision…

Answer 20

S = (Crash Cost - Normal Cost) / (Normal Time - Crash Time)