metadata Metadata is "data that provides information about other data", but not the content of the data, such as the text of a message or the image itself. There are many distinct types of metadata, including: * Descriptive metadata – the descriptive ...

, Annotea is an RDF standard sponsored by the

W3C The World Wide Web Consortium (W3C) is the main international standards organization for the World Wide Web. Founded in 1994 and led by Tim Berners-Lee, the consortium is made up of member organizations that maintain full-time staff working to ...

to enhance document-based collaboration via shared document metadata based on tags, bookmarks, and other

annotation An annotation is extra information associated with a particular point in a document or other piece of information. It can be a note that includes a comment or explanation. Annotations are sometimes presented in the margin of book pages. For anno ...

s. In this case document metadata includes: *

Keywords Keyword may refer to: Computing * Keyword (Internet search), a word or phrase typically used by bloggers or online content creator to rank a web page on a particular topic * Index term, a term used as a keyword to documents in an information syste ...

* Comments * Notes * Explanations * Errors * Corrections In general, Annotea associates text strings to a web document or selected parts of a web document without actually needing to modify the original document. Users that access any web documents can also load the metadata associated with it from a selected annotation server (or groups of servers) and see a peer group's comments on the document. Similarly shared metadata tags can be attached to web documents to help in future retrieval. Annotea is an extensible standard and is designed to work with other W3C standards when possible. For instance, Annotea uses an

RDF Schema RDF Schema (Resource Description Framework Schema, variously abbreviated as RDFS, , RDF-S, or RDF/S) is a set of classes with certain properties using the RDF extensible knowledge representation data model, providing basic elements for the descr ...

for describing annotations as metadata and

XPointer XPointer is a system for addressing components of XML-based Internet media. It is divided among four specifications: a "framework" that forms the basis for identifying XML fragments, a positional element addressing scheme, a scheme for namespaces, ...

for locating the annotations in the annotated document. Similarly a bookmark schema describes the bookmark and topic metadata. Annotea is part of the W3C Semantic Web efforts. An example implementation of Annotea is W3C's Amaya editor/browser. The current Amaya user interface for annotations is presented in the Amaya documentation. Other projects consists of Plugins for

Firefox Mozilla Firefox, or simply Firefox, is a free and open-source web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. It uses the Gecko rendering engine to display web pages, which implements current and ...

/Mozilla or Annotatio Client which interacts with most browsers per JavaScript.

References

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External links

W3C Annotea web site

Annotea.org web site

Annotatio - Java implementation of Server and Client

Annozilla - Plugin for Firefox/Mozilla
Metadata

See also

References

External links