Roles

In short, the roles can be summarized like this:

The Manager role can delete and manage (set permissions) on assets. They also have certain database abilities.
The Editor role can update assets and access the tables that assets output in new models or by downloading
The Viewer role can see task history, versions and refresh assets
The Auditor role can view models and versions

You can get a full overview of each role in the table below.

Ability	Manager	Editor	Viewer	Auditor
Database
database-view	✓	✓	✓
database-create	✓	✓
database-tables	✓
database-credentials	✓
database-whitelist	✓
database-delete	✓
Folders
folder-view	✓	✓	✓	✓
folder-create	✓	✓	✓
folder-edit	✓	✓
folder-manage	✓
folder-delete	✓
Connections
connection-view	✓	✓	✓
connection-execute	✓	✓	✓
connection-tasks	✓	✓	✓
connection-tables	✓	✓	✓
connection-download	✓	✓	✓
connection-update	✓	✓
connection-manage	✓
connection-delete	✓
Models
model-versions	✓	✓	✓	✓
model-view	✓	✓	✓	✓
model-execute	✓	✓	✓
model-tasks	✓	✓	✓
model-tables	✓	✓	✓
model-download	✓	✓	✓
model-update	✓	✓
model-manage	✓
model-delete	✓