| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent writing that is newly performed in a certain area of a board surface from being displayed while overlapping physical writing in a different base in the case of erasing electronic writing by the different base in the area in an own base, in the configuration in which display on the board surface, such as a white board is shared by a plurality of bases.SOLUTION: It is determined whether physical writing is included in an erasure area selected on a board surface 1406 and a corresponding area. About a B base including physical writing 1402, the area is set in an additional writing inhibition area in which the physical writing 1402 is not shared with other bases, and a frame 1408 is displayed in the area. About A, C bases which include corresponding electronic writing 1403 but do not include the physical writing 1402, the area is set in an additional writing caution area in which new writing is shared with other bases, and a frame 1407 is displayed in the area.</p> |
