The calendar retrieval interface is illustrated in Figure 4. Every time a new document is inserted in the system, the calendar for the current month is generated. This process automatically extracts the appointments users have recorded with their Unix calendar manager software. These data are placed in the appropriate cell of the display

along with 4 dpi thumbnails for the first three pages of the last three documents received by the document server on that day. Users can navigate directly to a particular document by clicking on one of the thumbnails. Doing so displays the description shown in Figure 3. Alternatively, users can click on a day. This displays a list of all the documents processed on that day.