Inter and intra media-object QoS provisioning in adaptive formatters

  • Authors:

  • Rogério Ferreira Rodrigues;Luiz Fernando Gomes Soares

  • Affiliations:

  • Lab. TeleMídia, Rio de Janeiro, RJ, Brazil;Lab. TeleMídia, Rio de Janeiro, RJ, Brazil

  • Venue:
  • Proceedings of the 2003 ACM symposium on Document engineering
  • Year:
  • 2003

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Abstract

The development of hypermedia/multimedia systems requires the implementation of an element, usually known as formatter, which is in charge of receiving the specification of a document (structure, media-object relationships and presentation descriptions) and controlling its presentation. The process of controlling and maintaining the presentation of a hyperdocument with an output of acceptable quality is a QoS orchestration problem, which needs to be treated by formatters in two related levels: the inter media-object and the intra media-object orchestration. This paper aims at discussing the issues associated to QoS provisioning in hypermedia systems, focusing on the design and implementation of formatters. We propose a QoS framework for hypermedia formatters based on a generic quality of service model for communication environments. The paper also comments the experience obtained in the framework instantiation for the HyperProp system formatter.