5. Mistakes to avoid

5.1 Don't estimate task durations on your own

Under no circumstances should the project manager estimate them alone: they are assigned to task managers. The project manager's role is to create a climate of trust with the project's contributors, so that the estimated durations are as reliable as possible. He is the guarantor of the estimation method.

5.2 Don't base estimates on incomplete data

The analytical method is based on the breakdown of the project (WBS), with task managers taking responsibility...