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Two axes-timing consideration and tolerance of data loss-are particularly important for networked multimedia applications.
Timing considerations are important because many multimedia applications are highly delay-sensitive.
Networked multimedia applications are for the nmst part lost-tolerant-occasional loss only causes occasional
glitches in the audio/video playback, and these losses can often be partially or cully concealed. These delay-sensitive
but loss-tolerant characteristics are clearly different from those of elastic applications such as the Web, e-mail, FTP, and
Telnet. For elastic applications, long delays are annoying but not particularly harmful, and the completeness and integrity
of the transferred data is of paramount importance.
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