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1987-11-08
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Documentation for XXXPERT is in the file named XXXPERT.DOC and is already
formatted for printing. You may print a copy with the following commmand:
type xxxpert.doc>prn
this release of XXXPERT has some additional features beyond those in the
early releases of the product, including:
1. Support for integer and real numbers in rule fields.
2. GT (greater than) syntax for numerics in rules.
3. GE (greater than or equal to) syntax for numerics in rules.
4. LT (less than) syntax for numerics in rules.
5. LE (less than or equal to) syntax for numerics in rules.
6. Non-compound IF syntax in rules (ie: IF --- EQ --- THEN --- EQ ---).
7. Backspace key may be used interchangeably with left-arrow key.
8. Punctuation keys available for use in rules and asks.
9. Zap command on all edit mini-menus which will blank out the edit workspace.
10.Insert/Overtype mode indicator on all edit screens.
11.PageDown and PageUp keys supported in edit mode.
12.Ask capacity increased to 600 lines (300 asks).
13.Faster file I/O.
14.Rules cross reference report (option on main menu).
15.Faster compilation.
16.Facility to get Asks and Rules in single file retrieval step (Get-a-file.)
17.Command line parameter to indicate desired rulebase (ie: to start XXXPERT
from DOS with the CAR rules and asks files type: xxxpert car). Optional.
18.Support for longer individual rules (multiple ANDs in a rule).
19.A consult-only operating mode that allows immediate start of consultation
from the DOS prompt or from batch files. This mode may be used by typing
consult followed by the name of the desired rulebase. (ie: consult car2).
The rulebase must have been previously run through a KEEP to be used in
this mode and must have a set of ASKs with the same name. (ie: car2.a).
The KEEP creates a compiled set of rules and saves them in a .k file
(ie: car2.k). KEEP is an option on XXXPERT's main menu.
20.A line may be deleted in edit by holding the Ctrl key and pressing the D
key at the same time.
21.Enhanced menu facilities structured like a well-known spreadsheet product's.
22.Rule element capacity increased to 400.
23.Considerably enhanced error handling.
24.Extended input and output facilities to link consultations with other
application's data or other consultation's data.
25.Insert blank line in edit mode by using return key while in insert mode.
26.Consultation prologue, intermission and epilog screens.
27.Printer output option for Xref and Trace.
28.Escape key terminates Consultation at any prompt XXXPERT or CONSULT.
29.Identification and reporting of circular logic errors in coded rules.
30.Capability to read 1-2-3 .WKS spreadsheet file data during consultations.
31.Capability to run external programs during consultations and return data
to the consultations from external programs that are run during these
consultations.
32.Comments may be included in the rules by placing a { in the first position
of the line to indicate that the line is a comment. Comments may not be
placed before the goal, however.
33.Capability to read dBASE3 (r) files during consultations.
34.Automatic editing of user responses to prompts in consultation.
35.A MINICON program that is a memory frugal (115k) version of CONSULT.
MINICON has all CONSULT features except that ASKs are not available.
36.Capability to link multiple rule files serially within a CONSULTation
run. This allows expert systems with an arbitrarily large number of
rules. This capability is implemented throught the CHN@ command in the
EPILOGUE facility. CHN@ allows you to name a rulebase to invoke and
causes the results of the current consultation to be passed on to the
consultation for the named rulebase. The EPILOGUE facility allows for an
individual CHN@ rulebase specification for each possible consultation
result, therefore the rulebase used for the next consultation may be
varied according to the outcome of the current consultation. There is no
limit to the number of levels rulebases that may be involved in this type
of arrangement.
NOTE: operators other than EQ are allowed only in the IF portion of rules.
NE, GT, LT, GE, and LE may not appear in the THEN portion of rules.
If used they will be interpreted as an EQ.