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Critical Path Analysis

Critical Path Analysis

Scheduling Terms Reviewed by forProject Technology - updated Sep 2026
Quick definition: Critical Path Analysis is the practice of identifying the Critical and Driving Paths in a schedule, confirming they are credible, and using them to judge where delay will do the most damage.

Critical Path Analysis takes the dates and float produced by the Critical Path Method and works out what they mean. Its direct result is the identification of the project's Critical Path and the Driving Paths to key interim milestones. It also includes judging whether those paths are believable: a credible Critical Path begins at Time Now and runs to project completion, contains no Level of Effort or summary tasks, has no unexplained gaps between tasks, and is agreed by senior leadership. Because the paths shift as work is statused, the analysis is repeated every reporting cycle rather than performed once at baseline.

Why it matters

A scheduling tool will always return a Critical Path, whether or not it means anything — if the logic is incomplete or the durations are stale, the calculation faithfully produces a confident, wrong answer. Critical Path Analysis is the human check that closes that gap, and it is what turns a computed path into a decision about where to put management attention. It also surfaces the Driving Paths to interim milestones, which the Critical Path on its own will not reveal.

Also known as
N/A
Used in
Critical and Driving Path Analysis; schedule health assessment; IMS narrative reporting; what-if and schedule acceleration analysis

FAQ

Is Critical Path Analysis the same as the Critical Path Method?
They're a matched pair, not synonyms. Critical Path Method is the calculation that produces the dates and float; Critical Path Analysis is the work of interpreting that output — identifying the Critical and Driving Paths, checking they are credible, and acting on them.
What is needed to perform Critical Path Analysis?
A logically sequenced schedule with task durations and dependencies, statused to Time Now. The analysis depends on that logic to trace impacts, which is why validating the durations and relationships is part of the work rather than a precondition for it.
Definition maintained by forProject Technology.
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