Level of Effort activity usually consists of short amounts of work that must be repeated periodically. A Level of Effort (LOE) activity has a duration which is determined by its dependent activities.

When to use Level of Effort Activity?

Level of Effort activities can be used for on-going tasks that depend on other activities. For example, you could assign level of effort activities for safety meetings (over the life of the project), clerical work, or even some aspects of project management. A project manager who manages one project or multiple projects may be assigned 1 hour/day to Level-of-Effort activities in each project to complete administrative tasks. Level of Effort is used to define the amount of work performance within a time and is measured in staff days or staff hours per day/week/month.

Note: LOE activities are not critical and therefore cannot “drive out” the finish of a project. Safety meetings don’t push the project’s finish date out, they merely span the life of the project.

Working with Level of Effort Activity in Primavera P6

The predecessors and successors are used to get dates and durations of level of effort activities performed. In order to automatically calculate these durations and dates, you need to assign FF relationship to successor and SS relationship to predecessor. After you add Level of Effort activity and create relationships, project must be rescheduled.

By default, Level of Effort activities in Gantt Chart are not visible. You must format Bars in a Gantt Chart in order to display level of effort activities.