Here is an easy trick to get you users to identify themselves if you have web applications.
First, create a text field named "Server_Name", make it computed when composed and give it a default value of: Server_Name.
server := @Name([CN]; @Subset(@DbName; 1)); database := @Subset(@DbName; -1); @URLOpen("http://" + Server_Name + "/" + Database + "?login&RedirectTo=" + Database)
This will prompt the user using the default Domino login form and redirect the user to the database.
You can put this button in any application but you have to watch it because we are using the server name as a DNS entry so that it recognizes the host name.