US Patent 7386805 User interface for phased data entry

A wizard user interface capable of being cancelled and later resumed without loss of data is disclosed. Canceling from the wizard prior to its completion will optionally cause data entered on any of the wizard's pages to be saved to a file and stored in non-volatile memory. Subsequent invocation of the same wizard user interface will optionally cause the data to be read from the file and repopulated into the wizard's pages to restore the cancelled wizard to its pre-cancellation state. The user interface accordingly permits data entry to be performed in phases, with the wizard being exited between phases.