Definition of After Action Review

An after-action review (AAR) is a structured review to study the project that is done recently. This review gives information about what happened in the project and how it can be done better by the workforce and the processes, which you decide to keep for the next project.


This concept was introduced by the US military as a way for everyone to share the experience of the soldiers in the field. This system makes its roots in business as a knowledge management tool. Organizations adopt this system to share critical lessons and experiences with other team members so they can use this experience right away. In this way, organizations can appropriately improve their whole performance.

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