That obscure object of desire: multimedia metadata on the Web, Part-1
Jacco van Ossenbruggen, Frank Nack, Lynda Hardman · IEEE Multimedia · 2004
The semantic Web and the multimedia content description interface (MPEG-7) are the two most widely known approaches toward machine-processable and semantic-based content description. The concepts and technologies behind the approaches are essential for the next step in multimedia development - that is, providing multimedia metadata on the Web. Unfortunately, as this article discusses, many practical obstacles block their widespread use.