A mechanism is provided for signing on a user of a first domain into an affiliate application in a second domain. When the user needs access to the affiliate application, the request for access causes a ticket to be generated. The ticket identifies the user and is passed to an adapter. The adapter, which...http://www.google.com.hk/patents/US20050005094?utm_source=gb-gplus-share專利 US20050005094 - System and method for unified sign-on
