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XHyper_v1.1
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section3.mml
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<Include "Formats.mml">
<Section Hypertext>
3.0 Hypertext
<Body>
Hypertext can be defined as the creation and
representation of links betweem discrete
pieces of data. When this data can be graphics
or sound, as well as text or numbers, the
resulting structure is referred to as hypermedia
(Parsaye, et al). Hypermedia is quite feasible
in the <Hyper XWindows>X Window<endhyp> environment, by allowing the
user to select a word, phrase or figure with the
mouse pointer.
<Body>
Hypertext/hypermedia can be a extremely
powerful component in an on-line help system.
Instance where hypertext may be implemented
include:
<Body>
- Cross referencelinks between a word, phrase, or
figure and a section of the document discussing that word
or phrase.
<Body>
- Expanding an abbreviation.
<Body>
- Moving laterally as well as sequentially within the
document.
<Body>
Cross reference links are a must in any
sophisticated on-line help system. Frequently,
references are made in text to issues discussed
in other section of the document. With a hard
copy, this may require accessing the Table of
Contents for the actual page number and
flipping to that page. However, in a
conventional on-line document, this may
require paging to the desired document or
perhaps reloading one or more additional files.
With hypertext, links can be established
allowing the user to immediately access the
reference section.
<Body>
Abbreviations can be the most abused method
of shortcut in the English language. This is
especially true in the scientific and computer
communities. Typically a commonly used
phrase is abbreviated early in a document, and
that abbreviation is used throughout. A good
manual will attach an appendix defining all
abbreviation used throughout the document.
With hypertext, selecting an abbreviation
could result in its immediate expansion.
<Body>
Typically, on-line documents are envisioned as
a sequential list of pages. With Hypertext this
need not be the case. Documents could be
organized as a tree, where each node
represents a section of the document and the
user can move across siblings, up to the parent,
or down to the child.