History and Origin RSS
Netscape introduced in 1999 the format RSS 0.9 to offer a channel of contents for the entry My Netscape Network (MNN). The objective was to create a platform and a vocabulary based on RDF to be able sindicar the data in the entry of Netscape and in its browser, offering a very simple form of publishing contents and permitting to the desarrolladores web to obtain visits thanks to the contents offered in My Netscape. In this way they were benefited so much Netscape as the webmasters. Thanks to the channels, the user podia to carry out filters to indicate that channels desired to visualize, example: if the user was interested in articles of "economy", could personalize a filter so that only showed it notícias related to the theme selected.
By several reasons, Netscape decided not to continue the project RSS, what caused the apparition of different formats RSS, basically can be divided into two groups:
RSS 1.0: The specification is published in December of 2000 and is based completely in RDF, is conceived to take advantage of the possibilities of extension that offers without have to bring up to date the versions of the specification constantly, and conceived to enable its joint use with other documents RDF. Generally, the ficheros are kept with extension RDF.
RSS 2.0, 0.92, 0,91: It developed by Dave Winner, one of the main makers of the first specifications, this specification is based on XML (the 1.0 is based on RDF). The author modified the meaning of RSS and he offered the signficado of Really Simple Syndication (sindicación really simple) that gives an idea of the objective of this specification: to offer to the webmasters a tool to publish contents of a simple and quick form.