| 摘要 |
PROBLEM TO BE SOLVED: To easily perform communication needed when item data are displayed and to suppress the load on communication and display as much as possible. SOLUTION: In a display item component 11, table item information needed to display a table and display item data format information regarding items and item data to be displayed in the table are precisely set as table item attribute information. A table item communication library 13 sends to the communication component 12 an incoming message where screen area information is set so as to obtain item data of a display part updated on a screen by referring to the table item attribute information. Here, a data format for outgoing message reception is also defined. The display item component 11 performs screen update by displaying the item data, included in a outgoing message sent from a server 2, on the display screen.
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