Hypertext is text, displayed on a computer, with references to other text that the reader can immediately follow, usually by a mouse click or keypress sequence.... system is a link to another document or part of a document that includes information about the character of the link. For example, rather than merely pointing to the existence of a document, a link might also specify that the document supports the conclusion of the article pointing to it, that it contradicts the article pointing to it, that it is an older version of the document, that it serves to define the word next to the link, that it is an index to other documents of the same type, or some other relationship.
Hypertext is text, displayed on a computer, with references to other text that the reader can immediately follow, usually by a mouse click or keypress sequence.... system is a link to another document or part of a document that includes information about the character of the link. For example, rather than merely pointing to the existence of a document, a link might also specify that the document supports the conclusion of the article pointing to it, that it contradicts the article pointing to it, that it is an older version of the document, that it serves to define the word next to the link, that it is an index to other documents of the same type, or some other relationship. This allows a user to take actions such as searching only certain types of links or displaying them differently. It may also allow browsing software to do things like pre-fetching documents it expects the user to browse.
The Internet is a global network of interconnected computers, enabling users to share information along multiple channels. Typically, a computer that connects to the Internet can access information from a vast array of available server and other computers by moving information from them to the computer's local memory.... -based hypertext systems, typed links were a common feature in pre-Internet hypertext systems such as Xanadu
Project Xanadu
Project Xanadu was the first hypertext project, founded in 1960 by Ted Nelson. Administrators of Project Xanadu now contrast it with both paper and the World Wide Web, saying "Today's popular software simulates paper.... , NoteCards
NoteCards
NoteCards was a hypertext system developed at Xerox PARC by Randall Trigg, Frank Halasz and Thomas Moran in 1984. NoteCards developed after Trigg became the first to write a Doctor of Philosophy thesis on hypertext while at the University of Maryland, College Park in 1983.... , HyperWriter, IBIS
Wicked problem
"Wicked problem" is a phrase used in social planning to describe a problem that is difficult or impossible to solve because of incomplete, contradictory, and changing requirements that are often difficult to recognize.... /gIBIS, and others. Although they can be very useful, the lack of a standardized set of link attributes such as "Supports Position"/"Refutes Position" as well as the difficulty of applying the attributes has always hindered the use of typed links beyond prototyping purposes. Any system of attributes would turn a hypertext corpus into a semantic web
Semantic Web
The Semantic Web is an evolving extension of the World Wide Web in which the semantics of information and services on the web is defined, making it possible for the web to understand and satisfy the requests of people and machines to use the web content.... , and permit more sophisticated processing.
HTML, an Acronym and initialism of HyperText Markup Language, is the predominant markup language for Web pages. It provides a means to describe the structure of text-based information in a document?by denoting certain text as links, headings, paragraphs, lists, and so on?and to supplement that text with interactive forms, embedded '... standard defined by the World Wide Web Consortium
World Wide Web Consortium
The World Wide Web Consortium is the main international standards organization for the World Wide Web . It is arranged as a consortium where member organizations maintain full-time staff for the purpose of working together in the development of standards for the World Wide Web.... supports typed links using the rel (forward relationship) and rev (reverse relationship) attributes. These attributes are applied to either the
tag (for links between whole documents) or the tag (for links from a specific part of a document). For example, the tag specifies that the document "top.html" is a table of contents for the work that includes the document you are currently reading, and the tag specifies that "chap3.html" is the next document in logical sequence after the one you are reading.
The following link types are defined in the HTML 4 standard:
alternate
stylesheet
start
next
prev
contents
index
glossary
copyright
chapter
section
subsection
appendix
help
bookmark
Unofficial link types also exist. For example, Google has proposed to reduce the effect of comment spam in blogs with "rel=nofollow
Nofollow
nofollow is an HTML attribute value used to instruct some Web search engines that a hyperlink should not influence the link target's ranking in the search engine's index.... ".
