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INTERACTION DESIGN PRINCIPLES FOR INTERACTIVE ...

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Because Web-based asynchronous applications are not dependent upon<br />

consumption in real-time along with the broadcast, the applications can deliver more<br />

meaningful content than trivia or factoids, for example. They can and should be<br />

intimately tied to the content of the original program. These applications afford<br />

exploration, and allow users to discover greater depth of meaning from the original<br />

content.<br />

In the future, Web-based synchronous applications may become extended to<br />

become an alternate vehicle for VOD delivery. For example, IFILM<br />

(http://www.ifilm.com) is a site that provides video entertainment on the Web, offering<br />

short films, TV clips, music videos, sports, and a “viral videos” collection. This medium<br />

could easily distribute content that extends or enhances a television program. Currently,<br />

IFILM is one of the top ten streaming media sites in the world, delivering more than 30<br />

million streams per month.<br />

2.7.3 Constraints<br />

Because the interactive content available through Web-based asynchronous<br />

applications is removed from the primary source of information, it can lack depth of<br />

information. With its physical removal, it’s also much less likely that the users will find<br />

their way to this information.<br />

2.8 MEDIA CENTERS<br />

Media centers, or PC TVs, are personal computers equipped with TV tuner cards.<br />

They are similar to Web TV in that the functionalities of TV and Internet are integrated<br />

into one machine, but because they are hosted on a computer instead of on the television,<br />

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