Patent ID: 8145772

Claim:
A method for sending data, comprising: receiving, by a communication device, a first piece of information, which represents a first change in a data record to generate a first changed data record, and of a first data change indicator associated with the first change in the data record; making, by the communication device, a second change in the first changed data record to generate a second changed data record; ascertaining a second data change indicator based on the first data change indicator by the communication device; sending, by the communication device, a second piece of information, which represents the second change in the first changed data record to generate the second changed data record, and of the second data change indicator, to a second communication device; receiving, by the communication device, a third piece of information which represents a third change in a data record, made by the second communication device, to generate a third changed data record and of a third data change indicator associated with the third change in the data record, checking, by the communication device, whether the third data change indicator matches the second data change indicator or a data change indicator that has been generated prior to the second data change indicator for a previous change in the data record, and sending, by the communication device, the second piece of information and of the second data change indicator to the second communication device which has made the third change in the data record if the third data change indicator matches the second data change indicator or a data change indicator that has been generated prior to the second data change indicator for a previous change in the data record.