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In Use Case 10, discounts.com purchases widgets from smwidgets.com.
A buyer for discounts.com clicks on a link to access the latest price list on widgets at smwidgets.com. The buyer is taken to smwidgets.com's Web site and presented with the price list without having to sign on to discounts.com's Web site.
The following illustration shows this use case.
Discounts.com requests access to a price list at smwidgets.com. There is no federated user identity stored at discounts.com for its buyers or at smwidgets.com. When a request from discounts.com is sent to smwidgets.com, this entity creates an identity for the buyer that it sends back in a secure manner to discounts.com. Discounts.com uses this identity to authenticate the user and allow the buyer access to the requested resource.
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