Preliminaries
fault with respect to a fault model in a finished product. Thus, the aim
is to verify the correctness of a finished product. Testability in software
focuses on the verification of design and implementation.
1.7 SOFTWARE AND HARDWARE TESTING
There are several similarities and differences between techniques used
for testing software and hardware. It is obvious that a software applica-
tion does not degrade over time, any fault present in the application will
remain and no new faults will creep in unless the application is changed.
This is not true for hardware, such as a VLSI chip, that might fail over
time due to a fault that did not exist at the time the chip was manufac-
tured and tested.
This difference in the development of faults during ...