Because access rights are associated with users and groups by name, each user who accesses a VOB or dynamic view from any Rational ClearCase host must have the same user name on every Rational ClearCase host. In addition, all groups whose members access VOBs and views must have the same names on all supported operating systems, and each user’s primary group assignment must be the same in all environments. VOB and view access control describes how credentials are used when determining access rights in VOBs and views.
When a user's credentials are evaluated, group membership is considered only when the user requests access to file-system objects such as directory and file elements. For access to VOB metadata such as labels and branches, only the owner's name is important. Group membership is not considered.
The user and group name comparisons made by Rational ClearCase are not case sensitive on Windows® and case-sensitive on Linux® and on the UNIX® system. Passwords are not considered.