For Example...Take Fight Reservation application....
While recording new 'insert order', a new order number will 
be created automatically. That ordernumber will be the 
output value.  We can capture that ordernumber and open 
the 'Open order' with that captured number in the same Test.

For example..Flight Reservation....
While recording new 'Insert order' a new ordernumber will 
be created automatically. This ordernumber is the output 
value. We can capture this ordernumber and open that order 
in the Test.

what is the output value is..it capture the runtime values
and displyed in data table for future use.

for example u parameterized ur test for login window by
giving multiple values. and u want to see what are the
values the userid field taken.

   u can give the output value for userid field. it will
capture  the values at runtime and displayed and stored them
in data table.

i think u got my answer..if there is any feed back..pls mail
me at nanda.dreddy@gmail.com

output value is the value generated by  the appliction when 
it is run using qtp.this value will be displayed in runtime 
datatable.