Content Reference Identifier


Content Reference Identifier

A Content Reference Identifier or CRID is a concept from the standardization work done by the TV-Anytime forum. It is or closely matches the concept of the Uniform Resource Locator, or URL, as used on the World-Wide Web:

A unit of content, in a broadcast stream, can be referred to by its globally unique CRID in the same way that a webpage can be referred to by its globally unique URL on the web.

A CRID is specified much like URLs. In fact, a CRID is a so-called URI. Typically, the content owner will use their DNS-names in a combination with a product-specific name to create globally unique CRIDs. As an example, let's assume that BBC wanted to make a CRID for the Olympics in China. It may have looked something like this

crid://bbc.co.uk/olympics/2008/

Then, to refer to a specific event - such as the women's shot-put final - they could have used the following inside their metadata.

crid://bbc.co.uk/olympics/2008/final/shotput/women

Currently, three types of CRIDs play a major role in some unidirectional television networks: programme CRID, series CRID, and recommendation CRID.

In web casting

To make the CRID even more globally available the IETF will publish a request for comments specifying the use of the CRID over the web. This will allow consumer devices to hook up to content provider servers, much like current browsers look up webservers, requesting content by CRID.

In May 2005 an Informational RFC, No 4078, was published as the start of this work.

The long-term goal is that CRIDs should be available for use by cell phones, PDAs, digital TV receivers and other consumer devices for fetching content, either from a broadcast stream or over IP-based networks.

References


Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Content repository API for Java — (JCR) is a specification for a Java platform application programming interface (API) to access content repositories in a uniform manner.[1][dead link][2][not in citation given] …   Wikipedia

  • Reference (computer science) — This article is about a general notion of reference in computing. For the more specific notion of reference used in C++, see Reference (C++). In computer science, a reference is a value that enables a program to indirectly access a particular… …   Wikipedia

  • Uniform Resource Identifier — In computing, a Uniform Resource Identifier (URI) is a compact string of characters used to identify or name a resource on the Internet. The main purpose of this identification is to enable interaction with representations of the resource over a… …   Wikipedia

  • Fragment identifier — In computer hypertext, a fragment identifier is a short string of characters that refers to a resource that is subordinate to another, primary resource. The primary resource is identified by a Uniform Resource Identifier (URI), and the fragment… …   Wikipedia

  • Uniform Type Identifier — A Uniform Type Identifier (UTI) is a string defined by Apple Inc. that uniquely identifies the type of a class of items. Added in Apple s Mac OS X 10.4 operating system, UTIs are used to identify the type of files and folders, clipboard data,… …   Wikipedia

  • Schéma d'URI — En informatique, un schéma d’URI est le premier niveau de la structure de nommage des identifiants uniformes de ressources (URI). Toutes les URIs sont construites à partir d’un nom de schéma, suivi de deux points (« : ») puis du reste… …   Wikipédia en Français

  • TV-Anytime — TV Anytime, is a set of specifications for the controlled delivery of multimedia content to a user s digital video recorder (DVR). It seeks to exploit the evolution in convenient, high capacity storage of digital information to provide consumers… …   Wikipedia

  • Crid — is a concept from the standardization work done by the TV Anytime forum. A CRID or a Content Reference Identifier closely matches the concept of the Uniform Resource Locator, or URL, as used on the World Wide Web:A unit of content, in a broadcast …   Wikipedia

  • Map database management — stems from navigation units becoming more common in automotive vehicles (see Automotive navigation system). They serve to perform usual navigation functions, such as finding a route to a desired destination and guiding the driver to it or… …   Wikipedia

  • Arachne (Archaeological Database) — Arachne is the central object database of the German Archaeological Institute (http://www.dainst.org/index 3455 de.html). In 2004 the German Archaeological Institute (DAI) and the Research Archive for Ancient Sculpture at the University of… …   Wikipedia


Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”

We are using cookies for the best presentation of our site. Continuing to use this site, you agree with this.