A software package is to be designed and built to assist in software cost estimation. It will input certain parameters and produce initial cost estimates to be used at bidding time. a. (5 pts) It has been suggested a software prototype would be of value in these circumstances. Explain why this might be. b. (5 pts) Discuss how such prototyping could be controlled to ensure that it is conducted in an orderly and effective way and within a specified time span.