Atom allows lists of information, known as syndication feeds, to be synchronised between publishers and consumers. Atom feeds are composed of a number of entries, each with an extensible set of associated metadata. a W3C Date-Time content Content common Atom structure indicates the default author of the feed indicates a person or other entity who contributes to the feed indicates the time that the entry was issued issued hasContent hasEntry an individual entry that is contained by the feed indicates the time that the entry was created lang content indicates the default natural language of the feed (xml:lang) human-readable name for the person, corporation or other entity generator indicates the method used to encode the content info conveys a human-readable explanation of the feed format itself indicates the media type of the content the type of relationship that the link represents rel the time when the state of the feed was last modified e-mail address associated with the person a W3C Date-Time a short summary, abstract or excerpt of the entry a URI associated with the person a human-readable description or tagline for the feed a human-readable copyright statement for the feed href id the URI of the feed