Critical Path Method
Version 1.0.0 · Updated 2026-07-28
CORE DEFINITION
The critical path method (CPM), or critical path analysis (CPA), is an algorithm for scheduling a set of project activities. A critical path is determined by identifying the longest stretch of dependent activities and measuring the time required to complete them from start to finish. It is commonly used in conjunction with the program evaluation and review technique (PERT).
SCAFFOLDING EFFECT
Reduce cognitive load
The critical path method (CPM), or critical path analysis (CPA), is an algorithm for scheduling a set of project activities. A critical path is determined by identifying the longest stretch of dependent activities and measuring the time required to complete them from start to finish.
Anchor fast decisions
In a project, tasks have dependencies and durations. The critical path is the longest chain of tasks with zero total float—any delay in it directly extends the overall project duration. The mechanism is that the longest path in the dependency graph determines the project duration.
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- en.wikipedia.orghttps://en.wikipedia.org/wiki/Critical_path_methodverified
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