Abstract: An electronic whiteboard system and an operation method thereof are provided. The electronic whiteboard system includes a data processing device. The data processing device calculates an original message amount of an original object move message according to an object move operation on a cloud electronic whiteboard operated by one of the client devices. The data processing device simulates a grouping message amount of a grouping object move message according to the object move operation. The data processing device compares the original message amount and the grouping message amount to determine whether to generate the grouping object move message, and transmits the original object move message or the grouping object move message to other of the plurality of client devices.

Abstract: An electronic whiteboard system includes a data processing equipment receiving a plurality of first editing information provided by at least a portion of a plurality of client-end equipment, sorting and grouping the plurality of first editing information to select and sort from the plurality of first editing information as a plurality of pre-processing information, calculating a plurality of priority scores of the plurality of pre-processing information, sorting the plurality of pre-processing information according to the plurality of priority scores, verifying whether the plurality of pre-processing information sorted according to the priority scores are permitted to select at least one of the plurality of pre-processing information verified as permitted to generate second editing information, and executing the second editing information, so that the plurality of client-end equipment display editing results of a cloud electronic whiteboard corresponding to the second editing information.