Digital broadcasting is a novel paradigm for the ne xt generation broadcasting. Its goal is to provide not only better quality of pictures but also a variety of services that is impossible in traditional airwaves broadcas ting. One of the important factors for this new broadcasting environme nt is the interoperability among broadcasting appli cations since the environment is distributed. Therefore the broadcast ing metadata becomes increasingly important and one of the metadata standards for a digital broadcasting is TV -Anytime metadata. TV -Anytime metadata is defined using XML schema, so its instances are XML data. In order to fulfill interoperability, a standard query language is also required and XQuery is a natural choice. There are some research es for dealing with broadcasting metadata. In our p revious study, we have proposed the method for efficiently managin g the broadcasting metadata in a service provider. However, the environment of a Set-Top Box for digital broadcasti ng is limited such as low-cost and low-setting. The refore there are some considerations to apply general approaches for managing the metadata into the Set-Top Box. This pproposes a method for efficiently managing the broadca sting metadata based on the Set-Top Box and a proto type of metadata management system for evaluating our method. O ur system consists of a storage engine to store the metadata and an XQuery engine to search the stored metadata and uses special index for storing and searching. Our tare designed independently with hardware platform there fore these engines can be used in any low-cost appl ications to manage broadcasting metadata.
['Jong Hyun Park', 'Ji-Hoon Kang']
Storing and Searching Metadata for Digital Broadcasting on Set-Top Box Environments