What are data driven tests?

Running the same test script with different inputs. Inputs may be stored in Excel sheet.

When you test your application, you may want to check how it performs with multiple set of data. Here you will create data driven test with the loop that runs ten times for ten sets of data. For each iteration, test is driven by different set of data.

In order for Winrunner to use data to drive test, you must substitute fixed value in the test with variables.

Data driven test are used to test the application taking same operation with multiple set of data. As each iteration application is going to be tested with different sets of data which were assigned in the Excel sheet and simultaneous result will be get displayed in the same Excel sheet or in the separate Result window

parameterization is done for multiple data. Data Driven test is used to parameterize the data.