Attribute-Defining items

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.

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.