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Critical Path Analysis (CPA) or Critical Path Method (CPM) is a powerful tool that facilitates project schedule development and required project resource planning. Primarily, the tasks mentioned in the critical path analysis are those that focus on the timely completion of the project as a whole. It also provides insight into which tasks can be put on hold in case resources are needed that can be allocated to complete critical project tasks. principles A critical path analysis is a representation of the tasks required to complete the project, the amount of time required to complete each task and the extent of the overlap between these tasks. Projects are usually created and managed using a planning mechanism or tool such as project management software or a spreadsheet application. Elements The graphic elements used as part of the Critical Path Analysis Tool are numbered nodes (points) represented as circles and the activity flow path represented by arrows or arcs. The numbered contract corresponds to the project completion stages, while the arrows or brackets connecting the contract together represent the activities or tasks associated with the project. The representative diagram for the project is referred to as an activity-on-arc (AOA) diagram. This diagram summarizes a network of interrelated tasks from which the ideal critical path for project completion can be determined. Importance The importance of the critical path analysis is that it gives an initial insight into preparing the first draft of the project timeline. It also gives a practical readiness to the project in determining the resources needed to complete the tasks and the relationship of each task with the total project time. In this way, Critical Path Analysis is a project management tool to monitor and coordinate the various activities required to complete the project. This tool helps you determine when certain tasks must be executed and in what sequence, and it also shows you what jobs can be performed simultaneously, which reduces the amount of time required to complete the project, and when you need resources to complete the various tasks.