Lessons Are Not Learned At the End of a Project
Lessons are not learned at the end of a project but throughout the project and even beyond. A lesson is truly learned when the same, or similar, mistake is not made the next time the same, or similar, situation arrises.
Lessons learned need to be acted upon and actively applied during, after and before each project.
The collection (verb AND noun!) of lessons learned is only the begining. There is ample evidence1 that active learning is only fully realized when organizations apply both passive (online repositories, surveys) and active (workshops, brainstorming sessions, mentoring & coaching) forms.
Initial lessons learned are the antecendent for further learning throughout the life cycle of your project and are critical to its success.
See also "Lessons are learned throughout the project" and "Project Management Office needs to allign with PM to faciliate learning"
1 Sofia Pemsel, Anna Wiewiora, Project management office a knowledge broker in project-based organisations, International Journal of Project Management, Volume 31, Issue 1, January 2013, Pages 31-42, ISSN 0263-7863