A data driven, no-refresh, high-interactivity user interface framework, which can be used in (or with) web browsers to provide user interface for accessing product and service configuration through network connection. For example, the user interface can be used with web-based customer order management or product configurator. In one embodiment, the user interface presented as a web document is updated using Document Object Model (DOM) to avoid refreshing. Updates to the user interface are driven by the data managed by the user interface. An event queue for user actions to be dispatched to the server is provided to improve usability of the user interface. A user interface level application program interface is provided for external applications/modules to improve configurability.