HP Open Extensibility Platform (HP OXP), developed by Hewlett-Packard Co., is an enterprise software development platform that consists of three unique layers. 1) HP OXPd, the device layer, enables document workflow applications, 2) HP OXPm, the management layer, exposes functionality for management software like HP Web Jetadmin, and 3) HP OXPw, the workflow layer, embeds web services technology into software like the HP Universal Printer Driver (HP UPD). The device layer, or HP OXPd, provides a software development kit (SDK) for creating document workflow applications based on standard web service protocols. Document workflow applications are value-added software applications designed specifically to increase user productivity while interacting with multifunction printers ("MFPs").