پايگاه دانش مدیریت پروژه> الگوهای مديريت پروژه> گروه فرايندی برنامه ريزی> مديريت زمان پروژه > برآورد مدت زمان فعالیت

Definition: Activity duration estimates are quantitative assessments of the likely number of work periods that will be required to complete an activity.
Activity duration estimates should always include some indication of the range of possible results. For example:
• 2 weeks ± 2 days to indicate that the activity will take at least eight days and no more than twelve (assuming a five-day workweek)
• 15 percent probability of exceeding three weeks to indicate a high probability—85 percent—that the activity will take three weeks or less.

Acceptance Level:  Generally accepted

Alternative or Related Terms: None

Application Areas/Intended Uses: Activity duration estimates are an input into schedule development.

Chief Advantages: Generally represents the most accurate data available on the expected duration of a given project activity, because it originates from the person or persons most familiar with each activity.