PMP Definitions: L

Many of the words defined here have broader, and in some cases different, dictionary definitions. In some cases, a single glossary term consists of multiple words (e.g., root cause analysis).

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Definitions: L
Lag The amount of time whereby a successor activity will be delayed with respect to a predecessor activity.
Late Finish Date (LF) In the critical path method, the latest possible point in time when the uncompleted portions of a schedule activity can finish based on the schedule network logic, the project completion date, and any schedule constraints.
Late Start Date (LS) In the critical path method, the latest possible point in time when the uncompleted portions of a schedule activity can start based on the schedule network logic, the project completion date, and any schedule constraints.
Lead The amount of time whereby a successor activity can be advanced with respect to a predecessor activity.
Lessons Learned The knowledge gained during a project which shows how project events were addressed or should be addressed in the future for the purpose of improving future performance.
Lessons Learned Register A project document used to record knowledge gained during a project so that it can be used in the current project and entered into the lessons learned repository.
Lessons Learned Repository A store of historical information about lessons learned in projects.
Level of Effort (LOE) An activity that does not produce definitive end products and is measured by the passage of time.
Log A document used to record and describe or denote selected items identified during execution of a process or activity. Usually used with a modifier, such as issue, change, issue, or assumption.
Logical Relationship A dependency between two activities, or between an activity and a milestone.
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