1. A device for updating a component of application software in a digital broadcasting signal receiver, comprising: a storage section configured for storing executing data comprising a first plurality of structural elements for executing an application software that produces a user interface of the digital broadcasting signal receiver; a program specific information/service information extracting section configured for extracting program specific information/service information (PSI/SI) from a received digital broadcasting signal; an updating data extracting section configured for extracting an updating information for partially updating the first plurality of structural elements of the executing data from the PSI/SI, and for extracting an updating data for updating the application software from the received digital broadcasting signal according to the updating information in order to update a second plurality of the first plurality of structural elements of the executing data stored in the storage section to generate updated executing data, wherein the second plurality is less than the first plurality; and an application software section configured for updating and executing the application software according to the updated executing data, wherein the updating data are data according to a digital storage media-command and a control (DSM-CC) protocol, and wherein the updating information includes an insertion position information of the updating data in the received digital broadcasting signal.