Accurate and honest schedule estimation can be difficult. Many people inherently underestimate the time it will take to complete any task. To compensate, some project managers and team members will add time to tasks when creating a schedule to ensure that the project finishes on time. What are the practical and ethical implications of this practice? Note: There is a subtle difference between adding buffer time to a schedule and over-estimating task times (sometimes schedule buffers are necessary for the schedule to work based on known information).