Patent ID: 7246263

Claim:
A method for data record transmission, the method comprising: transmitting, from a first location to a second location a request for data records, the request including a last record identifier of a last previously received data record; determining, at the second location, further data records that have become available subsequent to the second location sending the last previously received data record to the first location, the further data records not having been available for sending at the time of sending of the last previously received data record, the determining being based on the last record identifier being compared with further record identifiers associated with the further data records; transmitting, from the second location to the first location, the further data records, the further data records being associated with a respective one of the further record identifiers, each of the last record identifier and the further record identifiers being a unique numeric identification that is assigned by the second location to a respective one, and only one, data record such that the last record identifier and the further record identifiers are all different from each other; and updating, at the first location, the further record identifier of a last received further data record.