System Analysis and Design
The black-box concept:

assumes that inputs and outputs will remain stable
is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
All of these
None of these
assumes that the black box is independent

ANSWER DOWNLOAD EXAMIANS APP

System Analysis and Design
System prototyping helps the designer in

making the programmers understand how the system will function.
giving a demo of the software, to the system manager to whom he reports
all of the listed here
communicating to the user, quickly, how the system, when developed, will look like and get a feedback.

ANSWER DOWNLOAD EXAMIANS APP