Interactive service system and method for controlling the same, multimedia content transmitting device and method for controlling the same, multimedia content receiving device and method for controlling the same, sub-content receiving device and method for controlling the same, program for controlling interactive service system, program for controlling multimedia content transmitting device, program for controlling multimedia content receiving device, program for controlling sub-content receving device, and recording medium recording program

An interactive service system in which (i) a service provider transmits, to a service requester, multimedia content including content and sub-content attached to the content, and (ii) the service requester transmits, to the service provider, a message with respect to the multimedia content,

• the service provider transmitting, to the service requester, the content and sub-content included in the multimedia content via a single communication path,
• the service requestor transmitting the message according to the destination data which is provided in the service requestor,
• the content and sub-content being transmitted to the service requestor in an asynchronous manner, and
• the sub-content including information for associating the content with the sub-content.

A multimedia content transmitting device comprising:

• transmitting means for transmitting multimedia content including content and sub-content attached to the content,
• wherein the transmitting means transmits the content and sub-content included in the multimedia content via a single communication path,
• the content and sub-content is transmitted in an asynchronous manner, and
• the sub-content includes information for associating the content with the sub-content.

A multimedia content receiving device, comprising:

• receiving means for receiving multimedia content including content and sub-content attached to the content,
• wherein the receiving means receives the content and sub-content included in the multimedia content via a single communication path,
• the content and the sub-content are received in an asynchronous manner, and
• the sub-content including information for associating the content with the sub-content.

A method of controlling an interactive service system in which (i) a service provider transmits, to a service requester, multimedia content including content and sub-content attached to the content, and (ii) the service requester transmits, to the service provider, a message with respect to the multimedia content, the service provider including a multimedia content transmitting device for transmitting the multimedia content, the service requestor including the multimedia content receiving device for receiving the multimedia content, and the service provider further including a message receiving device for receiving the message from the multimedia content receiving device,

• the method comprising the steps of:
• the multimedia content transmitting device transmitting, to the multimedia content receiving device, the content and sub-content included in the multimedia content via (i) separate communication paths respectively, or (ii) a single communication path in an asynchronous manner;
• and
• the multimedia content receiving device transmitting the message according to destination data provided in the service requester,
• wherein the sub-content includes information for associating the content with the sub-content.