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1988-02-01
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How to manage hypertext cross-links
===================================
Once you've entered all the angle-bracket links between files, the REFALL
program <FILE64 DESCRIPTION> lets you see and analyze your link structure.
You can set the REFALL program to read a single file, a class of file, or
all files in a directory. The program automatically locates all angle
bracket filenames in each ASCII file and creates a MaxThink format file
listing these cross-links.
For example, if the REFALL program reads each of a set of 500 ASCII files,
the program creates an outline with 500 angle-bracket filename topics. The
subtopics of each would contain the angle-bracket filenames of the
cross-links found in each topic. Together, this list contains the master
map of all the hypertext links in the ASCII files. <FILE30 BUILDING>
I load this REFALL list into MaxThink or HOUDINI for further analysis.
For example, HOUDINI easily shows the hierarchical and circular structures
of my cross links.
To locate knowledge areas, I use the FILE OUTPUT command of HOUDINI
which automatically identifies the natural network partitions. The natural
partition is the complete set of ASCII files that each file in the set may
cross-link to.
Once I've identified my natural partition, I use HOUDINI to organize a
separate knowledge network covering just that subject area. Again, this
approach reduces the circularity of the overall hypertext system.
Having completed the ASCII linking, I use our IC program (Integrity Checker)
to verify each cross-link.
The IC program uses the REFALL file, then tries to open each file listed in
the complete system. The IC program finds errors in naming and references
to non-existent files.
For example, the types of hypertext cross-link error I want to avoid are:
┌────────────────────────────────────────────────────────────────┐
│ Links to non-existent files (incomplete system) │
│ Files that are not referenced by other files (isolated files) │
│ Files that have no links to other files (dead-end information) │
└────────────────────────────────────────────────────────────────┘
The REFALL, IC programs along with MaxThink and HOUDINI eliminate these
types of hypertext cross-link errors.
Neil Larson 1/16/88 FILE34
44 Rincon Rd., Kensington, CA 94707
Copyright MaxThink 1988 -- Call 415-428-0104 for permission to reprint