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A project-management technique that lays out all the activities needed to complete a task, the time it will take to complete each activity and the relationships between the activities. Also called the "critical path method", critical path analysis can help predict whether a project can be completed on time and can be used to reorganize the project both before starting it, and as it progresses, to keep the project's completion on track and ensure that deliverables are ready on time.

Either manually or using computer software, the project manager first lists each activity, the order it must be completed in and how long it is expected to take, and then diagrams the process.

http://www.investopedia.com/terms/c/critical-path-analysis.asp

Critical Path

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Critical path analysis or critical path method is a project management technique used to predict project duration and, therefore, is useful for both project scheduling and resource planning. The Critical path represents the sequence of tasks or events that directly impact project completing. Project managers can shorten or at the least control a project's schedule by focusing on critical path tasks. This is referred to as critical path management.

Understanding the critical path sequence provides you with information on where you have flexibility and where you do not. On every project there are activities or tasks that have flexibility. The task can start earlier or later without jeopardizing the completion date. The flexibility between the earliest time that an activity can be completed and the latest time that it must be completed is referred to as float. By definition if an activity has float it is not on the critical path.

If your project falls behind schedule you will not want to assign additional resources to non-critical activities, as this will

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