A small scale, incomplete, but working sample of a desired system is:
a. an entity realtionship diagram
b. a prototype
c. a data-flow diagram
d. a unifired modeling language diagram
e. none of these
Answer: b. a prototype
a. an entity realtionship diagram
b. a prototype
c. a data-flow diagram
d. a unifired modeling language diagram
e. none of these
Answer: b. a prototype