A system includes a terminal apparatus configured to generate pieces of data, each of the pieces of data including time information indicating when each of the pieces of data is generated; a destination apparatus configured to accumulate the pieces of data; a relay apparatus configured to store the pieces of data transmitted from the terminal apparatus based on the time information and to relay the pieces of data to the destination apparatus; and a processing apparatus configured to acquire the pieces of data that are stored in the relay apparatus and to process the pieces of data, wherein the relay apparatus is configured to store an amount of the pieces of data in the relay apparatus based on the time information, the amount corresponding to an amount of data that the processing apparatus processes based on a time range of the pieces of data.