An attribute-defining item (ADI) describes, formats, and manipulates data contained within data files. They are located in a file's dictionary or in the account's master dictionary. ADIs are used by nearly all D3 processors to create data interrelationships, format data, or select data.
When a new account is created, several predefined or default attribute definition items are included in the new account’s master dictionary. The default ADIs fall into the following categories:
These default attribute defining items are found in the dictionary of the data file. If no ADIs are explicitly requested in an AQL report, the default fields display automatically.