After NextGENe is installed, user management can be configured for both NextGENe and the NextGENe Viewer. User management requires that a user be authenticated before logging in and using the applications. You can configure user management independently for each computer (localhost) on which NextGENe is installed. In this configuration, the SoftGenetics Server service must be installed on each computer on which NextGENe is installed. Because the same user management configuration is part of the installation process for Geneticist Assistant, the steps that you must follow to install the SoftGenetics Server service depend on whether Geneticist Assistant has already been installed on the localhost. Alternatively, a single server can host the SoftGenetics Server service and you can configure each NextGENe host to connect to this single server to verify user credentials. When you configure user management, you must always configure the Administrator user account first. Only the Administrator user has all the necessary privileges for managing other users. All other users are standard users. After you configure user management, you must turn on user management. You can also always turn off user management at any time without deleting any of the user configuration information.