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RSS and Atom by Heinz Wittenbrink

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2.3 RSS 2.0 Elements for Rich Metadata

With the core elements of RSS 2.0, a resource can be characterized only very rudimentarily. Several other RSS 2.0 elements are used to describe an entire feed and its components in detail. Only with these elements does an RSS feed become a container for rich metadata.

With the elements for metadata you can characterize a feed and its aspects from different perspectives: concerning the origin and the kind of content; the authors and rights; and the technology and publication frequency. Some elements support aggregators in downloading only new and changed information. As far as syntax is concerned, there are three groups among these elements:

  • Elements that can only be descendants of channel: language, copyright, ...

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