In order to easily verify the details including a use state of devices of a
network each time function processing is to be executed, a CPU
sequentially acquires log information of each function of each device
notified from another PC, when each device is to be operated in accordance
with the function set by the other PC, and sequentially stores the log
information of each acquired function and manages the stored log
information. In response to a request for the log information of each
function from the other PC, the corresponding log information among the
managed log information is notified to the other PC via the network.