Explain Advantages and Disadvantages of DDF?

Answer

Advantages of DDF

• Large number of test data can be read and written in to the external file in a single test
• Loop statement is used to repeat the same steps for several iterations. Hence coding effort is reduced
• Since the data are read and written directly into the external file, there is no need to copy, paste or export data in order to use them
• Test Data can be read from any external file and the outputs can be written into any other external file

Disadvantages of DDF

• Scripting knowledge is required to develop this framework
• Sometimes more number or combinations of data from an external source like Database may slow down or even crash the QTP