Abstract: The present invention relates to a method for asynchronous multimedia content retrieval, which can be applied to TV-Anytime standard or MPEG standard. In summary, an asynchronous multimedia retrieval method is provided as including: a client establishing the first session as requesting to the server; transmitting to the server the retrieval inquiry message for contents that the server needs; terminating the first session after the retrieval inquiry; establishing the second session and requesting to the server the result for the retrieval inquiry at a certain point in time that the previously set time has passed; and receiving the retrieval result from the server and terminating the second session.

Abstract: The present invention relates to a method for asynchronous multimedia content retrieval, which can be applied to TV-Anytime standard or MPEG standard. In summary, an asynchronous multimedia retrieval method is provided as including: a client establishing the first session as requesting to the server; transmitting to the server the retrieval inquiry message for contents that the server needs; terminating the first session after the retrieval inquiry; establishing the second session and requesting to the server the result for the retrieval inquiry at a certain point in time that the previously set time has passed; and receiving the retrieval result from the server and terminating the second session.

Abstract: Provided is a method for servicing queried contents using a Simple Object Access Protocol (SOAP) operation. The method includes transmitting a request message of a SOAP query operation to which a request element field type is added in order to request various content searches through a complex operation, and extracting a query result expression value corresponding to a table field designated in the request field type element, and adding the extracted query expression value to a query result element to transmit the added value by a response message of the SOAP operation, when the request message includes the request element field type designating a query request result value.

Abstract: Provided is a method for searching contents using a Simple Object Access Protocol (SOAP) operation. The method includes adding a request element field type in order to request various content searches through a comparison operation in a SOAP query operation, and transmitting a request message of the SOAP query operation to which the request element field type is added to a content service server. The method adds an operator associated with a comparison operation to a corresponding query request field which requests the search result of various contents to a SOAP query operation, thereby enabling to perform a content search by a complex operation expression.