Patent ID: 7428698

Claim:
A method for differential dynamic content delivery, the method comprising: providing a session document for a presentation, wherein the session document includes a session grammar and a session structured document; creating a prerecorded presentation session including repeatedly; recording a presentation control instruction; and recording a time stamp in association with the presentation control instruction; playing back a prerecorded presentation session, including sending prerecorded presentation control instructions to a presentation server at time intervals dictated by time stamps associated with the prerecorded present control instructions; receiving a prerecorded presentation control instruction; selecting from the session structured document a classified structural element in dependence upon the prerecorded presentation control instruction, in dependence upon user classifications of a user participant in the presentation, and in dependence upon a presentation history of the classified structural element, wherein: the presentation history further comprises a classified structural element identifier, a user classification, a count of the number of times the classified structural element has been presented, a count of the number of times the session document containing the classified structural element has been used in presentations, and a historical presentation rate representing a ratio of the number of times the classified structural element has been presented and the number of times the session document containing the classified structural element has been used in presentations; and responsive to determining that the historical presentation rate is greater than a historical presentation rate threshold, selecting the classified structural element; and presenting the selected structural element to the user.