Multi modal interface

摘要

A system for synchronizing application programs which together provide a multi-modal user interface, which comprises multiple application programs which provide the various interface of the multi-modal interface and which are in communication with a synchronization manager. Means are provided to detect status changes in the application programs and to communicate such status changes, in the form of data updates to the synchronisation manager. The synchronization manager is operative to communicate such a data update to the application program in which the data update did not originate so that the application programs are synchronised.