Answer / bharath vajja

scrub - it's a temporary program which replaces the missing
mandatory module in top-down approach.

driver - while integration the module in bottom-top approach
if at all any mandatory module is missing then that module
is replaced by with a temporary program known as driver.

Answer / rahul jain

Stub-stub are dummy modules which used in top down
integration testing.these are special purpose program
simulate the activity of the missing component.

Driver-driver are special purpose program which make calls
to lower layer of component.drivers are used in bottom up
approach.

Answer / radhika bondugulapati

Stub -> while integrating the modules in a top down approach
if at all any mandatory module is missing then that module
is repalced with a temporary program is known as stub.


Driver -> while integrating the modules in a bottom up
approach if at all any mandatory module is missing then that
module is repalced with temporary program is known as driver.

Answer / balakiranm

Stub & Driver are temporary components (or)
interfaces which are used as the substitute
for sub & main module.
Stub: In top-down integration substitute for
sub module is called "Stub".
Driver: In bottom-up integration substitute
for main module is called "Driver".

Answer / arun m kamithkar

stub is a temporary program which stimulates lower level
modules in top-down approach.

driver is a temporary program which stimulates higher level
modules in bottom-up approach.

Answer / vidya

Stub :- In top-down integration " A simulated program which
replaces a called program is called " Stub"

Driver : In bottom-up integration , A simulated program that
replaces a calling program is called "Driver"

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