Defining data
For optimum test data generation, the entire contents of your data must be defined. Using the Type Designer, you can define input data so that each data object of the source data is identified. You can define the output data according to your output specifications.
How specifically you define the data is up to you. For example, if there is a large section of data that you want to process quickly, define it loosely as a chunk of text.
The purpose of the Type Designer is to define your data.