Channel definition format

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The Channel Definition Format (CDF) is an XML standard that related to that of Microsoft -designed technologies Active Channel and offline favorites (Engl. Offline Favorites ) is used. It is used to structure the content of websites . The standard is in some ways similar to the RSS standard developed by Netscape a few years after CDF first appeared (in 1997). The standard and the active channels were introduced with the appearance of Internet Explorer 4.0. Offline favorites were introduced with version 5.0. With the appearance of Internet Explorer 7, the standard was dropped again in favor of RSS.

Active channels allow users to list and synchronize websites on their desktop . Offline favorites as well as channels allow websites to be called up from the cache.

In contrast to RSS, however, the idea of ​​active channels has not been widely accepted and they are only used sporadically.

example

An ordinary CDF file: 

<?xml version="1.0" encoding="UTF-8"?>
<CHANNEL HREF="http://domain/folder/pageOne.extension"
  BASE="http://domain/folder/"
  LASTMOD="1998-11-05T22:12"
  PRECACHE="YES"
  LEVEL="0">
    <TITLE>Title of your Channel</TITLE>
    <ABSTRACT>Synopsis of your channel's contents.</ABSTRACT>
    <SCHEDULE>
      <INTERVALTIME DAY="14"/>
    </SCHEDULE>
    <LOGO HREF="wideChannelLogo.gif" STYLE="IMAGE-WIDE"/>
    <LOGO HREF="imageChannelLogo.gif" STYLE="IMAGE"/>
    <LOGO HREF="iconChannelLogo.gif" STYLE="ICON"/>
    <ITEM HREF="pageTwo.extension"
      LASTMOD="1998-11-05T22:12"
      PRECACHE="YES"
      LEVEL="1">
        <TITLE>Page Two's Title</TITLE>
        <ABSTRACT>Synopsis of Page Two's contents.</ABSTRACT>
        <LOGO HREF="pageTwoLogo.gif" STYLE="IMAGE"/>
        <LOGO HREF="pageTwoLogo.gif" STYLE="ICON"/>
    </ITEM>
</CHANNEL>

See also

Web links