Yahoo! Inc.

Chandra Pisupati

Aamod Sane

David Jackson

Ashish Kasi

Sung Ho Park

Deyang Song

Jimmy Duvall

Junxu Li

Ali Mohamed

Sheridan Rawlins

Timothy Reeth

Boris Shkolnik

Con Lam

A web page is generated by applying a partial evaluation technique. In one embodiment, at design time, a page designer enables a dynamic version of a page specification program to be generated, such as by way of a page customization interface. This dynamic version can be executed during the design process, with page customization choices evaluated in a dynamic manner. The parts of the page specification that can be evaluated to static form at design time are identified, and the program is partially evaluated, with the identified parts transformed to static form. The remaining dynamic parts of the page specification program are executed at request time, resulting in a generation of the page to be provided for display over the network. In general, different parts of a page specification program may be selected for evaluation at different times, and there may be more than two phases of evaluation.

Employing partial evaluation to provide a page

Modification of the presentation of page appearance, page navigation flow, and other aspects of the user experience of an online shopper navigating the virtual shopping cart and checkout pages of an online store is achieved without compromising the security of checkout processing. The modification may include customization, and various configuration and customization tools may be employed. The online shopper experiences continuity between unsecured-connection pages presenting items for purchase and secured-connection pages presented for checkout processing. In one embodiment, page navigation flow is modified using continuations implemented using a relatively small stack to save information relating to the flow. In another embodiment, a page designer enables a dynamic version of a page specification program to be generated, such as by way of a page customization interface. Partial evaluation is employed to generate a version of the program that is executed at request time.

Customization of an online shopping experience

Growing community of inventors

Sunnyvale, CA, United States of America

Chandra Pisupati