Annotea
Encyclopedia
In metadata
, Annotea is an RDF
standard sponsored by the W3C to enhance document-based collaboration via shared document metadata based on tags, bookmarks, and other annotation
s.
In this case document metadata includes:
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 for describing annotations as metadata and XPointer
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 or Annotatio Client which interacts with most browsers per JavaScript.
Metadata
The term metadata is an ambiguous term which is used for two fundamentally different concepts . Although the expression "data about data" is often used, it does not apply to both in the same way. Structural metadata, the design and specification of data structures, cannot be about data, because at...
, Annotea is an RDF
Resource Description Framework
The Resource Description Framework is a family of World Wide Web Consortium specifications originally designed as a metadata data model...
standard sponsored by the W3C to enhance document-based collaboration via shared document metadata based on tags, bookmarks, and other annotation
Annotation
An annotation is a note that is made while reading any form of text. This may be as simple as underlining or highlighting passages.Annotated bibliographies give descriptions about how each source is useful to an author in constructing a paper or argument...
s.
In this case document metadata includes:
- KeywordsKeywordsKeywords are the words that are used to reveal the internal structure of an author's reasoning. While they are used primarily for rhetoric, they are also used in a strictly grammatical sense for structural composition, reasoning, and comprehension...
- Comments
- Notes
- Explanations
- Errors
- Corrections
In general, Annotea associates text strings to a web document
Web document
A web document is similar in concept to a web page, but also satisfies the following broader definition:The term "web document" has been used as a fuzzy term in many sources A web document is similar in concept to a web page, but also satisfies the following broader (W3C) definition:The term "web...
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 for describing annotations as metadata and XPointer
XPointer
XPointer is a system for addressing components of XML based internet media.XPointer is divided among four specifications: a "framework" which forms the basis for identifying XML fragments, a positional element addressing scheme, a scheme for namespaces, and a scheme for XPath-based addressing...
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
Semantic Web
The Semantic Web is a collaborative movement led by the World Wide Web Consortium that promotes common formats for data on the World Wide Web. By encouraging the inclusion of semantic content in web pages, the Semantic Web aims at converting the current web of unstructured documents into a "web of...
efforts.
An example implementation of Annotea is W3C's Amaya
Amaya (web browser)
Amaya is a free and open source WYSIWYG web authoring tool with browsing abilities, created by a structured editor project at the INRIA, a French national research institution, and later adopted by the World Wide Web Consortium . Amaya is used as a testbed for web standards and replaced the Arena...
editor/browser. The current Amaya user interface for annotations is presented in the Amaya documentation. Other projects consists of Plugins for Firefox/Mozilla or Annotatio Client which interacts with most browsers per JavaScript.