An XQuery-based TV-Anytime Metadata Management

Abstract

Digital broadcasting is a novel paradigm for the next generation broadcasting and can offer a new opportunity for interactive services such as content-based browsing, non-linear navigation, usage of user preference, and history, etc. One of the important factors for this new broadcasting environment is the inter-operability among providers and consumers since the environment is distributed. Therefore a standard metadata for digital broadcasting is required and TV-Anytime metadata is one of the metadata standards for digital broadcasting. It 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, which is a forthcoming standard query language for XML data, is a natural choice. In this paper we propose an efficient XML data management system that supports TV-Anytime metadata, especially using XQuery as a query language. Since the volume of metadata would be very large in real situation, our s