Explain the advantages of incremental system development from the viewpoint of

a. The managers of the enterprise sponsoring the project
b. The project manager
c. The implementation team

a. The managers have a working version of the system in a short time. They can evaluate its usefulness and suggest changes for the next iteration.
b. The project manager can make a more realistic schedule when only a relatively small part of the project is to be built. The project manager can more efficiently deal with the changes the managers will suggest. It is easier to test the system in incremental steps. Risk is minimized.
c. The implementation team can more easily prepare the required documentation for the project in incremental steps. Design, coding, and testing are all easier.