Once registered, the administrator adds the users who have access to the site. Only these users can use the system and each user is allocated the rights and roles.
Some users may be managers or executing specific projects - which means that other projects and tasks they do not. Other users can find access to the report, or, for example, allow access to the financial possibilities of the project.
If the user has access to administrative functions of the site - then the user will be a new menu "Administration" with the list of permitted functions.