Editor Gráfico de Conectores Hipermídia para Linguagem NCL 3.0

• Júlia Varanda da Silva UFF
• Débora Christina Muchaluat-Saade UF

Abstract

Significant development effort is dedicated to authoring spatiotemporal relationships, including user interactivity, in multimedia applications. That effort is even higher when the language requires specification of relationships using links, as it happens with NCL, adopted in the Brazilian digital TV system. In an NCL program, the author must specify each type of relation to be used, as a causal hypermedia connector, and each relationship among media components as a link that uses a connector, which makes the authoring process very tiring. Connector specification requires knowledge about the event-based temporal model used by NCL, which is not trivial for beginners. This paper presents a graphical editor for NCL hypermedia connectors. Besides facilitating connector creation, the proposed editor can help users understanding how spatio-temporal relations are specified in an interactive digital TV program.

Keywords: NCL language, digital TV, hypermedia connectors, graphic editor, spatio-temporal relations, interactivity