Interactive server, control method thereof, and interactive system

A method of controlling an interactive server, the method comprising:

• receiving a first uttered voice signal from an apparatus;
• extracting uttered elements from the received first uttered voice signal;
• generating response information based on at least one from among stored utterance history information and the extracted uttered elements;
• and
• transmitting the generated response information to the apparatus,
• wherein the stored utterance history information is information which is generated based on a second uttered voice signal received from the apparatus before the first uttered voice signal is received.

An interactive system comprising:

• an apparatus which, if an uttered voice of a user is input, performs a function corresponding to the input uttered voice;
• and
• an interactive server which, if a first uttered voice signal is received from the apparatus, extracts uttered elements from the first uttered voice signal, generates response information based on at least one from among stored utterance history information and the extracted uttered elements, and transmits the response information to the apparatus,
• wherein the apparatus performs a function corresponding to an intention of the user based on the response information received from the interactive server, and the stored utterance history information is information which is generated based on a second uttered voice signal received from the apparatus before the first uttered voice signal is received.