Abstract: In a GUI environment including a plurality of windows, a user may establish one or more groups of windows such that the windows comprising each group are related. The user may cycle focus successively between the windows in the group in response to a focus cycle command input by the user. The focus may cycle bidirectionally between the windows in the group in response to bi-directional focus cycle command inputs by the user. The user may shift focus to a window outside of the group by entering a focus shift command.

Abstract: A system and method of managing data for electronic price label overlays which automates printing of new and changed overlays. The method determines electronic price label information and price look-up file descriptions that have been added or changed for particular electronic price labels. Additions and changes in overlay data are marked and identified by the marks to create a print data file. Alternatively, additions and changes are identified by a comparison of a first file with a second file containing the additions and changes. The system includes a number of storage media for storing the PLU file and the EPL data file, and a computer which determines a change in the PLU file or the EPL data file and which creates the print file for printing an overlay for the change in the PLU file and EPL data file.

Abstract: A system and method of managing data for electronic price label overlays which automates printing of new and changed overlays. The method determines electronic price label information and price look-up file descriptions that have been added or changed for particular electronic price labels. Additions and changes in overlay data are marked and identified by the marks to create a print data file. Alternatively, additions and changes are identified by a comparison of a first file with a second file containing the additions and changes. The system includes a number of storage media for storing the PLU file and the EPL data file, and a computer which determines a change in the PLU file or the EPL data file and which creates the print file for printing an overlay for the change in the PLU file and EPL data file.

Abstract: A method of diagnosing communication problems of electronic price labels in a transaction establishment which identifies the probable locations of the problems. The method includes the steps of assigning the electronic price labels to groups based upon their ability to receive a message from a computer, locating the electronic price labels, mapping locations of the electronic price labels, identifying a predetermined group of electronic price labels having the reception problems, and determining the cause of the reception problems.