There is no difference between data driven and 
parameterization.we use data driven for parameterizing the 
inputs.

Thanks shreya....

To test the application with different test data is called 
data driven test.To drive the data to script we have to 
change the constant value as parameterize,then for each 
iteration it will take different data that we have 
mentioned in the data table.

Thiru,
Where is it making The Difference?
Its the Same .

In parameterzation we can run an application for 1 
Iteration.If we need to run the application for several 
Iterations data driven comes into picture.

Parameterization is nothing but passing the Inputs through
Program. For example. we can give the input while running
the scripts. which would be dynamic.

Data-driven means Passing the input data in wise of records
through files (word, Test, XL, Database)

In real world both are common

if we want to parameterize the same value in several steps 
we can go for data driver insted of parameterizing single 
step at a time.

Data driven is one of the automation frame work..,, 

Where as parameterization is process by which one can attain
the data driven frame work in the automation testing.