Hello:

I have an application that needs to run 24x7. As the data for the different
object attributes change within the application, I want to be able to fire
the rules that are affected by the changed data.

I was looking at the pump-tank example. In there I saw that rules are fired
within a while loop at a fixed interval:
        while (t.isIntact()){
                    rete.executeCommand("(run 1)");
                }

Q1. Is there a way to make Jess automatically fire rules whenever data
changes for a given object(s) attribute(s)? 

Q2. What are the performance hits (if any) between hard coding the Jess
rules in a Java application and reading them from a script at runtime?

Q3. I read in a past PCAI magazine that some one had developed a high level
rule editor that works with Jess and other rule engines. Does any one have a
reference to this product or have experience with similar products.

Thanks in advance,
Vicken Kasparian
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