both are eqal using repository,but advantage is greter than 
disadvantage.Because u r using repository memory is vast,u 
r not using this every statement ur write on the tool

Using Object Repository is a advantage or disadvantage? 
Answer
# 1 both are eqal using repository,but advantage is greter 
than 
disadvantage.Because u r using repository memory is vast,u 
r not using this every statement ur write on the tool

Hello Ravindra don't copy the Answers ....(Srinu Answer)

using object reposotory has more advantage. It has few 
disadvantages also , it's based on scenario on which we are 
going to automate.In our application , we are having same 
kind of objects in different pages, during that time we can 
use descriptive protgramming instead of having the same 
object repetively in all the pages it ll consume more 
space.bbut it's preferable to use OR in qtp.

Use of OR is more efficient.since Descriptive programming 
or reading property values from Excel sheet and create a 
object will take more time.This you won't able observe when 
you do it for 1 or 2 object. Do it for one complete 
scenerio and you will able to figure out the time taken for 
creating objects.
So Use Descriptive programming for very very less objects 
in your complete application where it is not working with 
OR.
You can observe how much time it will take while reading 
values from excel and creating objects if you automate some 
30 testcases.
OR is best feature provided by QTP .Use descriptive where 
operations not performed some objects. you will find some 
dialog boxs or messageboxes.so there use descriptive 
programming.