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Data feed is a mechanism for users to receive updated data from data sources. It is commonly used by real-time applications in point-to-point settings as well as on the World Wide Web. The latter is also called web feed. News feed is a popular form of web feed. RSS feed makes dissemination of blogs easy. Product feeds play increasingly important role in e-commerce and internet marketing, as well as news distribution, financial markets, and cybersecurity.[1] Data feeds usually require structured data that include different labelled fields, such as 'title' or 'product'.
The Web is evolving into a web of data or Semantic Web.[citation needed] Data will be encoded by Semantic Web languages like RDF or OWL according to many experts' visions. So, it is not difficult to envision data feeds will be also in the form of RDF or OWL. A big advantage of providing semantic data feeds, i.e. feeding data in Semantic Web standards, is that the data can then be readily consumed and reused by other computers.
CSV data feeds are mostly being used within affiliate marketing. Affiliate or so called publisher websites use the CSV file to load product information from online stores. This way it is a lot easier to load thousands of products to the website. CSV is not like XML and is not as semantic but it does have a good basic structure. This file format can easily be created and loaded with any spreadsheet program like Excel.
A data feed is an ongoing stream of structured data that provides users with updates of current information from one or more sources.
A data feed may stream continuously or be delivered on demand. Data feeds make it possible to have new content or updates delivered to a computer or mobile device as soon as it is published. The same technologies are also used to supply data to other software.
Facebookâs News Feed is a commonly-seen example of a data feed. News Feed pulls items from status updates, photos, videos, links, app activity and likes from people, Pages and groups the user follows. Items in the feed may be self-contained or summaries that include links to further information.
There are many other types of data feeds, including news, weather and sports updates, content publication feeds and Twitter timelines. In a security context, threat intelligence feeds provide organizations with constantly updated information about potential or current attacks that could pose a risk to their business.
Data feeds are often described in terms of their methods of delivery. RSS feeds, for example, use an XML-based file format to deliver content from multiple sources to users. An RSS aggregator or RSS reader allows the user to see summaries of all their feeds in one place. Atom, an alternative, open-source specification, provides similar functionality.