Creating/Defining Your Data Model › Defining Your Data Model › Levels of Entry

Levels of Entry

The entries of a file arise from three different levels at which you specify relations for the file:

• File level—all those fields resulting from the resolution of file relations.
• Access path level—all those fields resulting from the resolution of access path relations. They must be either inclusive of or be a subset of the entries from the file relations level.
• Device file level—those fields resulting from the resolution of device file relations. Entries resolved at this level are a subset of the access path level entries, which may not include every relation of the file.

  You can add additional entries to device designs for function fields.