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Amiga Format AFCD07 (Dec 1996, Issue 91).iso
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1996-09-13
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HISTORY OF ISTAR
VERSION 1.03, September 1996
# Made Istar more usable for drawing semantic networks. Two main
facilities:
# Added facility to alter the visual appearance of item boxes, in a
limited way. Pen 1 gives the text colour for the label, Pen 2 and Pattern
give the appearance of the box outline. This meant new gadgets added to
the Item Type Panel.
# Added facility to define, for an item type box, which types of
relationship will be drawn when user starts drawing from left or right
edge.
# Added KB Area panel, showing some details of the KB area, and allowing
you to alter some.
# Tidied up the mechanism for handling several KBs. Removed one or two
bugs that had crept in, such as referring to certain things in KB1 when KB2
was active.
# Added facility to record the Control Screen Parking position.
# Hopefully more tolerant when it doesn't find the fonts it wants.
# Cured one or two bugs encountered when linking items or moving links.
# Tidied up Preferences (but still too few), and cured the problems that
happened when setting them without a KB.
# Removed the crash/inf loop when hitting the meaning-bar right hand
gadgets when there is no KB. (As I never told users about them, this
should not have been a problem.)
VERSION 1.02, July 1996
# Placed on Aminet first as /misc/misc without install script, and then
with proper install script and updated docs in /biz/misc.
# Istar will now process more than one KB.
# It meant replacing the separate Select Item Type, Select Relationship
Type and Goal List panels with a single single KB panel. Each knowledge
base has its own KB panel.
# It also meant some internal changes to the structure of the modules
management, ES module operations, and other things, which are not described
here. (They are described in my Logs.)
# I also put the backward and forward chaining on a sounder footing.
Normally it worked OK but some funnies happened with overridden attributes.
# When resetting an attribute for backward chaining, all its antecedents
were reset OK, but the other consequents of those were not reset. Now they
are.
# Implemented facility to define new relationship types. This enables us
to move towards a semantic net builder.
# Added RANDOM unary operator.
# Proper implementation of limits on ordinals and enums.
VERSION 1.01, June 1996
This was the first version released. It was a development of the KBTools
software that came out of the INCA project, with a year spent on making its
code more robust and generalized. Istar works fairly well and robustly as
an inference net builder. But it can only process one KB at a time.
Copyright (c) Andrew Basden, on all the dates shown.