A test data profile is a named class of data types used to generate test data to one or more table columns. You can create test data profiles that contain number, character, or date/time data.
For example, you could create a test data profile called Address, that uses the character class, and then associate that profile with the columns Employee Location, Store Location, and Client Address.
You can apply a test data profile to a domain and thus generate the test data to all columns that use that domain. You can also assign default test data profiles for each of the number, character, and date/time classes, and have these default profiles automatically applied to any column that does not have a profile specifically associated with it.