What is the differences between parameterization and
correlation ?

Answer Posted / piyush singh

As as example, suppose we have recorded a script for login page with username: abc1 and password: Abc1
Now, while replaying the script you don't want the same hardcoded values in you script since that will not imitate the real world scenario.
So we will parameterized it by substituting it with a parameter say {username} and {password} and then we will modify the parameterization property and add rows and column in data file and select occurrence as either sequential or random.

On the other hand, when we send a request (for e.g. booking a flight) to server and in the response for each iteration server sends a dynamic session id or any dynamic value, then we will apply correlation here by using web_reg_param function or through design studio (automatic correlation) so that the dynamic value can be replaced by a parameter and script wouldn't get failed

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