Efficient Querying and Streaming of Multimedia Content Using Web Services

Abstract

Web service standards provides a standard support for interoperability and reusability among various platforms, but in case of streaming multimedia data the current web service standards in terms of data transfer is not well supported. At present mostly Universal Description Discovery and Integration (UDDI) is used for publishing and discovery of multimedia web services providing a key word based search for the user. The web service standards used for delivering the multimedia streaming objects is also not sufficient due to very large object size and also the processing and delivering continuous stream of large scale data is difficult and time consuming to variety of client devices. This paper describes about the Service Oriented Architecture, in using an efficient querying mechanism which is specified in an extension of WSDL using the multimedia content metadata and its descriptions for querying the best service. Transmission of streaming data requires a message exchange protocol (MEP) to be defined and then implement the MEP in their SOAP HTTP bindings of the web service. Processing the demand for non functional requirements such as efficiency and security in streaming increases and the performance of SOAP is impacted by XML processing and communication overheads. To overcome these we go for various compression schemes for SOAP messages, so that the transfer overhead is reduced. By the new querying mechanism the efficiency of finding services can be improved as irrelevant data can be eliminated and by creating the MEP, efficiency is increased in terms of resource consumption.