Which scheduling technique is used to assess and quantify the effects of an unplanned event that can accelerate or delay a project schedule?

Which scheduling technique is used to assess and quantify the effects of an unplanned event that can accelerate or delay a project schedule?

• A. Time Impact Analysis (TIA)
• B. Extension of Time (EOT)
• C. Critical Chain Method
• D. Crashing

Answer: (B)

Evaluating how an unplanned event changes a project’s timeline is done with Time Impact Analysis. This approach uses the schedule model to simulate the event’s effect, inserting the anticipated delay (or acceleration) into the plan and then re-running the schedule to see how dates shift, which activities become critical, and how the overall project finish date changes. It gives a quantified impact on the schedule so you can determine the extent of delay or potential gain. Extension of Time, on the other hand, is a contractual process to formally request additional calendar time due to delays. It’s about documentation and agreement on a new completion date, not about analyzing the schedule to quantify the event’s direct effect. Crashing is a technique to shorten the overall duration by adding resources to critical activities, and the Critical Chain Method focuses on buffers and resource constraints; neither is specifically the method for assessing the impact of an unplanned event. So for assessing and quantifying the impact of an unplanned event on the schedule, Time Impact Analysis is the appropriate technique.

Evaluating how an unplanned event changes a project’s timeline is done with Time Impact Analysis. This approach uses the schedule model to simulate the event’s effect, inserting the anticipated delay (or acceleration) into the plan and then re-running the schedule to see how dates shift, which activities become critical, and how the overall project finish date changes. It gives a quantified impact on the schedule so you can determine the extent of delay or potential gain.

Extension of Time, on the other hand, is a contractual process to formally request additional calendar time due to delays. It’s about documentation and agreement on a new completion date, not about analyzing the schedule to quantify the event’s direct effect.

Crashing is a technique to shorten the overall duration by adding resources to critical activities, and the Critical Chain Method focuses on buffers and resource constraints; neither is specifically the method for assessing the impact of an unplanned event.

So for assessing and quantifying the impact of an unplanned event on the schedule, Time Impact Analysis is the appropriate technique.