1. Prototyping differs from the traditional systems development lifecycle, in that end-users
a. have no input
b. contribute heavily throughout development
c. contribute only during testing.
d. are important only during the conversion phase.
2. A PERT chart
a. shows each task as a horizontal bar without identifying the sequence of tasks
b. shows a project as a network diagram identifying the sequence of tasks
c. is the same as a system portfolio
d. is shown as a waterfall.