With "Display modes" now a first-class citizen in Drupal 8, there is some lingering confusion about the various "modes" in the Drupal eco-system. In previous versions of Drupal, it could be argued that "display modes" and "view modes" were the same thing. Now that Drupal 8 is available, we should make an effort to be more precise in our definitions of these terms.
In short, both "view modes" and "form modes" are types of "display modes":
- Display modes
- View modes
- Form modes
This is evident from the "Structure | Display modes" page (admin/structure/display-modes) of any Drupal 8 site:
Unfortunately, the rest of the Drupal 8 admin user interface isn't consistent with this nomenclature. For example, the "Format: Show" option of the Views module labels View modes as "Content" - which can be confusing to new users:
Wouldn't it make more sense if the "Manage Display" and "Manage form display" tabs and pages be renamed to "Manage view modes" and "Manage form modes" to make the UI more consistent?