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Simtel MSDOS 1992 September
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Simtel20_Sept92.cdr
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hypertxt
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hyperrez.arc
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LINK32
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1989-01-02
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Browsing: goal independence <sum08 1 4>
===========================
Definition --- Browsing means finding new or unexpected information.
Fact: You cannot browse a textual database. Why?
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(1) Textual database searches use vocabulary matches. <link26 3>
(2) Without knowing all vocabulary or synonyms, then how do you search?
Fact: Textual databases only find what you already know. Why? <link26>
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(1) Boolean searches only find exact matches, not close fits.
(2) How do you know if you are using the wrong or right patterns?
Conclusion:
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Traditional textual databases and Boolean searches may verify what
you know, but are ineffective in producing new or unexpected
information. <link33 1 8>
The solution .............. (press PgDn)
Why browsing works with hypertext information
=============================================
Rather than force users to guess the magic retrieval words for each
search within a textual database, hypertext can organize information
into a series of hierarchical classifications. Such hierarchical
classifications present users with choices that lead directly to
their desired information, without prior knowledge of their existence.
Key points:
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Factors that determine effective browsing <link43> are:
(1) The set of available hypertext choices appear complete
(2) The set of available hypertext choices appear appropriate
(3) The set of available hypertext choices appear correctly ordered
If these factors are present, users can quickly find whatever they
desire. Why? Because the system becomes predictable at all points.
While software for browsing should be easily understood, it is the
skills of the hypertext developer who ultimately makes the
contained knowledge naturally obvious to all viewers.