14. A non-transitory computer-readable medium having computer-executable instructions for execution by a processor, that, when executed, cause the processor to: provide, via a user agent, at least one privacy preference relative to the user identity wherein the user identity is represented by at least one information card used in completing an online transaction with a relying party; receive, via the user agent, user selections relating to at least one user identity; generate, via the user agent, at least one privacy preference, using the user selections; furnish, via the user agent, the at least one generated privacy preference; evaluate, via the user agent, at least one privacy preference against a privacy policy associated with the online transaction and obtained from the relying party, the evaluation using the at least one privacy preference of any category referencing at least one required attribute; and provide, by a host computer, the at least one information card that represents the user identity to the relying party.
14. A non-transitory computer-readable medium having computer-executable instructions for execution by a processor, that, when executed, cause the processor to: provide, via a user agent, at least one privacy preference relative to the user identity wherein the user identity is represented by at least one information card used in completing an online transaction with a relying party; receive, via the user agent, user selections relating to at least one user identity; generate, via the user agent, at least one privacy preference, using the user selections; furnish, via the user agent, the at least one generated privacy preference; evaluate, via the user agent, at least one privacy preference against a privacy policy associated with the online transaction and obtained from the relying party, the evaluation using the at least one privacy preference of any category referencing at least one required attribute; and provide, by a host computer, the at least one information card that represents the user identity to the relying party. 16. The non-transitory computer-readable medium of claim 14 , wherein the instructions further cause the processor to conduct, via the user agent, a process to define at least one category, populate each category with a respective group of user identity attributes, and determine a privacy preference for each category.