User and Group Permissions Functional Area (Master Data Manager)
Applies to: 
SQL Server - Windows only
Azure SQL Managed Instance
In the User and Group Permissions functional area, administrators can grant permission to functional areas, to attributes (on the Models tab), and to members (on the Hierarchy Members tab). Overlapping permissions are resolved to determine a user's permission to each individual attribute value.
Administrators (Master Data Services)
Create a Model Administrator (Master Data Services)
Users and Groups (Master Data Services)
Add a User (Master Data Services)
Functional Area Permissions (Master Data Services)
Assign Functional Area Permissions (Master Data Services)
Model Object Permissions (Master Data Services)
Assign Model Object Permissions (Master Data Services)
Hierarchy Member Permissions (Master Data Services)
Assign Hierarchy Member Permissions (Master Data Services)
Immediately Apply Member Permissions (Master Data Services)
How Permissions Are Determined (Master Data Services)