Critical Path Analysis (CPA) is a type of network analysis planning
technique that is used to plan and manage complicated projects or business processes.
CPA is a form of network analysis used to decide the continuous
chain of operations critical to completion of a project or business process
by its scheduled completion date.
It was developed in the 1950s to manage large defense projects.
Applications of Critical Path Analysis
Lay out all tasks that have to be completed as part of a complex project
Basis for preparation of detailed schedules and resource planning
Monitor the progress of goals
Signal the need for remedial action in case of problems in the project. CPA shows diagrammatically the interrelations in sequence of all the activities in a project / business process in such a way as to highlight, which are critical for the due performance of the overall work.
Critical Path Analysis versus Gantt Charts
Advantages of CPA over Gantt Charts:
CPA identifies tasks, which have to be completed on time
CPA identifies tasks, which can be delayed without effecting the project completion time
CPA identifies the minimum time required to finish a project
CPA identifies which tasks one needs to focus on to speed op a project.
Disadvantages of CPA compared to Gantt Charts:
CPA charts has no timeline, so the relation of tasks to time is less obvious.
CPA charts are more difficult to understand (especially for beginners)
How to Perform a Critical Path Analysis. Drawing a CPA Chart
List all activities in a project / process
Determine the earliest start date
Determine the required time for each task
Determine which tasks can be run in parallel and which ones are sequential.
Plot the activities in a CPA Chart, representing their logical relations by symbols.
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Advantages of Critical Path Analysis - Benefits
The main benefits of Critical Path Analysis are in my opinion:
Reduce lost time between tasks, ensuring a smooth running of projects.
By identifying projects that can be carried out simultaneous...
Sensitive and Insensitive Project Schedules
Critical Path Methodology plays a vital role in network sensitivity. The final CPA chart reveals the number of critical paths possible in a project. There can be one critical path or multiple critical...
Disadvantages of Critical Path Analysis - Drawbacks
In my view, the main drawbacks of Critical Path Analysis are:
A very complex project drawing becomes unmanageable, however the introduction of ICT has reduced this problem.
The network is only a...
How to Use Critical Path Analysis for Complex Projects
Critical Path Analysis (CPA) is a powerful tool that can help you to schedule and manage complex projects.
How to Draw a Critical Path Analysis Chart?
- Step 1. List all activities in the plan
- ...
Steps After Identifying the Critical Path in Project Management
After identification of the critical path, typically the following activities are carried out by the project manager/team:
Drawing a network diagram of all activities and dependencies to achieve a...
Critical Path in Agile Projects
Recently critical paths are being identified and worked upon in agile projects. The main steps are:
Form a network diagram of project initiation to delivery.
Notice the dependencies of the activ...
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Information Sources
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Project Planning, Project Management, Project Monitoring Extensive presentation about the Critical Path Analysis (CPA), also called the Critical Path Method (CPM). The following...
CPP, Critical Path Analysis Critical Path Practicals - These practicals provide hands on experience on some of the various critical path analysis re...
Critical Path Analysis, CPA, Critical Path Chart This CPA Practical Guide provides a step by step guidance to create and use CPA.
It has an example which is very helpfu...
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