a) The customer may be more likely to view the prototype and react to it than to read the SRS and react
to it. Thus, the prototype provides quick feedback.
b) The prototype displays unanticipated aspects of the systems behavior. Thus, it produces not only
answers but also new questions. This helps reach closure on the SRS.
c) An SRS based on a prototype tends to undergo less change during development, thus shortening
development time.