When an operation for causing a healthcare device to transfer a measurement value is performed on a communication apparatus, the communication apparatus issues a transmission request to the healthcare device. The healthcare device is capable of measuring and storing biological information on a plurality of subjects, and in response to the request, associates untransmitted measurement values for all of the subjects with memory IDs of storage regions corresponding to the respective subjects and storing the measurement values and a serial number of the healthcare device and collectively transmits the measurement values, the data on which is transferred to a server. In the server, a storage region is specified for each measurement value based on the memory ID and the serial number associated with the measurement value, and the measurement value is stored in the specified region.