An XML-based Quality of Service Enabling Language for the Web

In this paper, we introduce an XML-based Hierarchical QoS Markup Language, called HQML, to enhance distributed multimedia applications on the World Wide Web (WWW) with Quality of Service (QoS) capability. The design of HQML is based on two observations: (1) the absence of a systematic QoS specification language, that can be used by distributed multimedia applications on the WWW to utilize the state-of-the-art QoS management technology; and (2) the power and popularity of XML to deliver richly structured contents over the Web. HQML allows distributed multimedia applications to specify all kinds of application-specific QoS policies and requirements. During runtime, the HQML Executor translates the HQML file into desired data structures and cooperates with the QoS proxies that assist applications in end-to-end QoS negotiation, setup and enforcement. In order to make QoS services tailored toward user preferences and meet the challenges of uncertainty in the distributed heterogeneous envir...

• Type: Journal
• Year: 2002
• Where: VLC
• Authors: Xiaohui Gu, Klara Nahrstedt, Wanghong Yuan, Duangdao Wichadakul, Dongyan Xu
• Keywords: Multimedia Applications, Qos Specifications, VLC 2002, XML-based Hierarchical QoS