Server Configuration > Post Install Server Security > Access Control List System
  
Access Control List System
ACLs let you control configuration and process management activities at your site by defining which users have access to Windchill RV&S and Windchill RV&S functions (and, therefore, to the files in your development environment).
You can apply ACL management controls at whatever level your site and corporate situation require including:
all files and users at the site
specific projects
individual project members
specific groups of users
individual users
For a complete description of setting up and working with ACLs, see “User and Group Permissions: Access Control Lists”.