What are data driven tests?
When We test our application, We may want to check how it performs the same operations with multiple sets of data. We can create a data driven test with a loop that runs ten times : each time the loop runs, it is driven by a different set of data. In order for WinRunner to use data to drive the test, we must link the data to the test script which it drives. This is called parameterizing our test. The data is stored in a data table. We can perform these operations manually, or We can use the DataDriver Wizard to parameterize we test and store the data in a data table.