2 Why are rough estimates and costs considered as detailed e

Solution

rough estimates and costs are considered the most ballpark figure. These estimates are not very accurate, as they are the most initial estimate assessed in the first very interaction with the client, when the information is limited. These are considered as detailed estimates, because all the possible elements are considered while building rought estimates. So there is more likelihood of under-run then over-run. As more information about the scope/requirement is available, these estimates are refined and extra elements are removed. So the final estimates are mostly less than the rough estimates.