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Future of Creative Industries - Implications for Research ... - Europa

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- Push technology: through it, the in<strong>for</strong>mation is delivered to a person either becausehe/she have requested it or because someone else thinks that he/she is likely to beinterested in it.- P2P and swarming distribution is added lately to the above types <strong>of</strong> webcasting. Aswarming P2P distribution network turns all consumers into distributors, thusdecentralizing the distribution. As a result, this method requires only a minimum <strong>of</strong>server and network capacity <strong>for</strong> the central publisher compared to the traditionalwebcasting, but instead the methods demands a certain upload capability <strong>for</strong> the users.Distribution can be live or on-demand. In the future, there is a possibility that digitalInternet-originated distribution will also bypass the normal Internet and use directdevice-to-device distribution in ad hoc networks, pending on appropriate copyrightand payment schemes.As one <strong>of</strong> the future directions, push technologies are <strong>for</strong>eseen to become more interactive,taking into account the users’ past behaviour and their response or lack <strong>of</strong> it.The challenges <strong>for</strong> the future are related nearly with all the steps necessary <strong>for</strong> the webcastingprocess (table 4), and the changes are occurring at a high speed. For instance, the signal canbe already generated in digital <strong>for</strong>mat (Sony and Panasonic just released in 2004 newpr<strong>of</strong>essional digital cameras, enable to bypass the conversion process from analogue todigital).Table 4: Broadcast Technology and RequirementsTV Broadcasting StepsWebcasting steps1. Generate signal 1. Generate signal2. Transmit signal to TV station 2. Convert signal from analog todigital (encoding)3. TV station broadcasts signal 3. Compress signal to send overtelephone lines or an Internetconnection (compression)4. Transmit compressed, digitizedsignal to an Internet service provider(ISP) and replicates5. ISP clones the signal (i.e.,stream)and broadcast it over the InternetRequirementsRequirements Broadcast equipment Air time(purchased from network) Program contentTransmission/tower Webcasting equipment Communication link to ISP Program content Bandwidth (leased from ISP)Source: Peggy Miles, Internet world TM guide to webcasting, 1999, p. 3325

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