Catalog mode is used to retrieve a list of all formats available for a specific adapter. This functionality is primarily used by New Era of Networks Adapter GUIs that provide configuration services and functionality for various New Era of Networks adapters. Catalog mode, however, can be used without the GUI to generate a listing of the available schemas that are written as a file to storage in XML format. This file can then be viewed or consumed by another application. You would use Catalog mode with a GUI to show a list of formats. the list can be limited to specific criteria by using a filter. You can then select from the formats that are displayed. This is especially useful if you do not know which formats are available or the exact names of the formats.