What is the term for the amount of time an activity can be delayed without delaying the overall project?

What is the term for the amount of time an activity can be delayed without delaying the overall project?

• A. Float
• B. Lead Time
• C. Delay
• D. Slack

Answer: (D)

Slack is the term for the amount of time an activity can be delayed without delaying the overall project. In CPM scheduling, every task has some window of flexibility, measured as late finish minus early finish (or late start minus early start). This slack means you can push that task back up to that amount without pushing the project’s finish date. Tasks on the critical path have zero slack, so any delay there affects the project end date. Non-critical tasks have positive slack, giving scheduling room. While float is often used interchangeably, the essential idea is the same: it represents how much delay is permissible before the project completion is impacted.

Slack is the term for the amount of time an activity can be delayed without delaying the overall project. In CPM scheduling, every task has some window of flexibility, measured as late finish minus early finish (or late start minus early start). This slack means you can push that task back up to that amount without pushing the project’s finish date. Tasks on the critical path have zero slack, so any delay there affects the project end date. Non-critical tasks have positive slack, giving scheduling room. While float is often used interchangeably, the essential idea is the same: it represents how much delay is permissible before the project completion is impacted.