A cursor form is created for linking parts of a displayed image with corresponding entries of a table. When setting a link by designating a cursor on the display screen, a cursor for designating the location where a link is to be set surely and quickly is provided. Table data of the table (for example, a residents information table) consisting of image data (for example, a map) and a plurality of entries for setting links to this image data are displayed on the output device, and a mark which is the same as that of a predetermined item in the entry selected to set a link from the display table is designated by the cursor on a display image. When obtaining the location information on said designated image having the same mark, the data of a predetermined item among the entry data selected from the table is converted to image data, and the cursor form data is constituted. Thereafter, a cursor having this form is displayed on the display image, and a user sets a link between the image data and table data using this cursor.