It recalculated Units/Time because the other two attributes are fixed. For example, if the duration is reduced to 5 Days, P6 will recalculate the Units/Time from 8/d to 16/d. Also, you don’t have to know in exact numbers how long an activity will take, it is acceptable to have a range like – coding will take 4 weeks +/- 3 days. If either the Duration or the Units value is changed, Primavera P6 will recalculate the Units/Time (effort) for the activity. Analogous estimating is a top-down estimation technique for estimating the cost, resources and durations of projects (according to PMBOK®, 6th edition, ch. Now the activity duration estimates can be in terms of hours, days or weeks. For instance, if an activity was estimated at 80 hours, and you have one person assigned, and he works eight hours per day, the duration would be (80 / 1. They can be determined by developing an estimate for each activity, work package, or control account, using expert judgment or a quantitative method, such as: Parametric estimating. Once you are done with this process, the main output is how long each activity would take also known as Activity Duration Estimates. Duration estimates provide information on the amount of time it will take to complete project work. Tools and Techniques of Estimate Activity Durations Process Now an important question could be how do you actually do the estimate and come up with numbers? This is where the Tools and Techniques of the Estimate Activity Durations come handy. The Estimate Activity Durations process attempts to estimate the work effort. In general terms, all that you do in this process is check out all the activities in the activity list, consider the resource estimates and then estimate how long it would take to complete an activity. Estimate Activity Durations is the technique towards evaluating the number of work periods required to finish individual activities with estimated resources. The purpose of Estimate Activity Resources is to determine the types and.

Estimate activity durations