OBJECT MOVEMENT PROCESSING UNIT AND METHOD IN STORED EXCHANGE TYPE ELECTRONIC CONFERENCE SYSTEM AND MEDIUM RECORDED WITH MOVEMENT PROCESSING PROGRAM

摘要

PROBLEM TO BE SOLVED: To correctly move an object, irrespective of the sequence of information transmission. SOLUTION: Information denoting movement of an object is generated in the case of movement in the same layer, information denoting generation and deletion of an object is generated in the case of movement between layers and information to specify a high-order layer of a moved object is added. On the other hand, a server receiving the movement moves an object in the same layer when the information is information denoting movement of an object (S184). When the information is information denoting generation of an object, the generated object is registered, and when the high-order layer specified by the additional information differs from the high-order layer of the object registered already, the object having already been registered is moved under the high-order layer specified by the additional information (S172-S177). When the information is information denoting deletion of the object and the high-order layer specified by the additional information is the same as the high-order layer of the object having already been registered, the object having already been registered is deleted (S179-S183).