Answer / vijay

while intigrating the modules in TOP DOWN approach if any
any mandatory moduel is missing then it is replaced with
temperory program know as STUB.

In Bottom Up approach if any mandatory module is missing
then it is replaced with temperory program know as DRIVER.

Answer / b.srinivas

STUB is a substitute for sub module in the TOP DOWN
INTEGRATION

where as DRIVER is a substitute for main module in the BOTTOM
UP INTEGRATION.

These STUB and DRIVERS are provided by Developers only.

Answer / yogesh

Stubs are the dummy implementation of unbuilt module and
drivers are the program as the name indicates it drive data
b/w dummy module and actual module

Answer / satya

stub and drivers are the temprory programs which are used in
integration testing.in top down approach we are using the
temprary program called stub and in bottom up approach we
are using the temproary program called driver

Answer / sasya

stub:in the top downapproach if at all any mandatory module
is missing then that module is replaced with a temporary
programknown as stub.

driver:in the bottom upapproach if at all any mandatory
module is missing then that module is replaced with a
temporary programknown as driver.

Answer / sandeep

Stubs -
1. Stubs are basically known as Top-Down integration Testing.
2. It is done by Developer.
3. In this, a piece of code that simulates together to form
a main program.
4. Stubs can be driver but driver can not be stubs.

Drivers -
1. Drivers are basically known as Bottom-Up integration Testing.
2. It is done by Tester.
3. In this, a piece of code that passes through a number of
test cases and form a sub-program.

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