Like the HPD editors, S-57 Composer uses portrayal files to control the display of maps and charts. See Portrayal for details.
Features and attributes in S‑57 Composer products and external files are defined through catalogues.
Mapping converts features and attributes from one data format to another. You can also use mapping to convert between features and attributes of the same format.
See Support Files for a detailed description of mapping files and filtering operations.
A product information file defines a product type. Each product has its own product information file.
When you use the Create S‑57 Product wizard, the options displayed in the dialog boxes are taken from the product information file.