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Project Management & Agile · Foundational

Total Float

The amount of time an activity can be delayed from its early start without delaying the project finish date or violating a schedule constraint.

Definition

Total float = LS - ES or LF - EF. Critical path activities usually have zero total float. Also called slack.

Example

LS 12, ES 9: total float is 3 days.

Exam tip

Float belongs to the path; using it on one activity reduces it for others on the same path.

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