Regards,
I would like your opinions regarding techniques for managing phases of
execution in JESS scripts.
The application is near real time monitoring, and can be described in
the following phases:
1) Initialization and execution of configuration rules.
2) Acquire real time (transitory) facts until a complete state S is
known for time T. (telemetry that updates ~ 1/minute)
3) Evaluate transitory facts for S at T, draw conclusions and report
them (this is the meat of the application)
4) Retract transitory state and conclusions, and return to phase 2)
Expert Systems (Giarratano & Riley, 1998) Chapter 10 offers a number of
solutions in CLIPS. The option of choice, (defmodules and associated
features) appears not to be implemented in JESS. Phase control facts and
some limited use of salience appears to be our best bet, although they
will complicate the application somewhat.
Can you confirm that defmodules are not an option in JESS (further, is
there any reference that describes CLIPS features NOT implemented in
JESS)?
Can you offer any other suggestions for phase management other than
control facts and rules with explicit salience?
Thank you in advance,
Jack
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