Cosc 475 Final Exam 2025 Questions
and Answers 100% Pass
crtical path - ✔✔the longest continuous chain of activities through the network
schedule that establishes the minimum overall project durations.
Critical Path Characteristics - ✔✔-Longest path through schedule
-must have a start and end date
-path is continuous through to the end of the schedule
-Convergence: activities have more than one predecessor
-Divergence: activities have more than one successor
Early start / Early finish - ✔✔Early Start (ES): The earliest an activity can be started
after all predecessors to the activity are completed.
Early Finish (EF): The earliest an activity can be finished given that activity's early start
and duration.
Late Start/late finish - ✔✔Late Start (LS): The latest an activity can be started after all
predecessors to the activity are completed.
Late Finish (LF): The latest that an activity can be finished and still complete the project
within the minimum overall duration determined by the forward pass.
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 1
, Forward pass - ✔✔the process of navigating through a network from start to end and
calculating the early start and early finish dates for each activity and the finish date for
the entire project.
Goal: calculate the early start and finish dates
Result: what is the total project duration?
Backwards Pass - ✔✔the process of navigating through a network from end to start and
calculating the late start and finish dates. these dates determine the critical activities,
critical path, and the amount of float each activity has.
goal: determine the LS & LF dates for each activity
result: what is the critical path of a project?
Slack/Float - ✔✔A number that indicates the amount of time a task can be delayed
without impacting subsequent tasks or the project's overall completion.
Task Slack = Late Start - Early Start
Task Slack = Late Finish - Early Finish
Most Owner contracts will dictate the duration of float that is required within the
schedule.
Preconstruction activities - ✔✔-linear process of getting an acceptable price
-Design activities
-Review of task list
-Procurement Activities
-Common Challenges (permits, cranes, community impact, etc)
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 2
and Answers 100% Pass
crtical path - ✔✔the longest continuous chain of activities through the network
schedule that establishes the minimum overall project durations.
Critical Path Characteristics - ✔✔-Longest path through schedule
-must have a start and end date
-path is continuous through to the end of the schedule
-Convergence: activities have more than one predecessor
-Divergence: activities have more than one successor
Early start / Early finish - ✔✔Early Start (ES): The earliest an activity can be started
after all predecessors to the activity are completed.
Early Finish (EF): The earliest an activity can be finished given that activity's early start
and duration.
Late Start/late finish - ✔✔Late Start (LS): The latest an activity can be started after all
predecessors to the activity are completed.
Late Finish (LF): The latest that an activity can be finished and still complete the project
within the minimum overall duration determined by the forward pass.
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 1
, Forward pass - ✔✔the process of navigating through a network from start to end and
calculating the early start and early finish dates for each activity and the finish date for
the entire project.
Goal: calculate the early start and finish dates
Result: what is the total project duration?
Backwards Pass - ✔✔the process of navigating through a network from end to start and
calculating the late start and finish dates. these dates determine the critical activities,
critical path, and the amount of float each activity has.
goal: determine the LS & LF dates for each activity
result: what is the critical path of a project?
Slack/Float - ✔✔A number that indicates the amount of time a task can be delayed
without impacting subsequent tasks or the project's overall completion.
Task Slack = Late Start - Early Start
Task Slack = Late Finish - Early Finish
Most Owner contracts will dictate the duration of float that is required within the
schedule.
Preconstruction activities - ✔✔-linear process of getting an acceptable price
-Design activities
-Review of task list
-Procurement Activities
-Common Challenges (permits, cranes, community impact, etc)
COPYRIGHT © 2025 BY OLIVIA WEST, ALL RIGHTS RESERVED 2
