Estimating Task Duration
Describe the various methods for estimating task duration and discuss how these methods improve the accuracy of task duration estimates, taking into account the variation that is present in task duration. Provide practical examples to help illustrate the differences between the methods.
There are basically six methods of estimating task duration which are: similarity to other activities, historical data, expert advice, Delphi technique, Three-point technique, and Wide-band Delphi technique (Franchina, 2010). The similarity to other activities is pretty straight forward and this is where the project activity duration is similar to an activity that has been perform and documented. Having completed a similar activity already, the previous task can provide many insights into cost and duration of repeating the activity. If the same task has not been performed internally then the project can look at historical data from a range of different sources to estimate the duration.
Individuals who have performed similar activities before it...
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