Refining Estimates May Be Necessary for a Number of Reasons

Multiple Choice

Refining estimates may be necessary for a number of reasons.For example,a manager getting further into a project and obtaining a better understanding of what needs to be done to accomplish a project and meet the needs of the customer is an example of

A) Hidden interaction costs.
B) Things going wrong on a project.
C) Normal conditions not applying.
D) Changes in project scope.
E) There is never a good reason to refine estimates.