Forward/Backward Chaining
-------------------------

This is an applet (RuleApplet.html) which implements
the two major types of reasoning algorithms used with 
rule-based systems: forward and backward chaining.

To see the applet in action you have to compile the applet 
java file using:  

	javac RuleApplet.java

and produce twelve class files, resulting with:

RuleVarDialog.java
RuleVariable.java
RuleApplet.class
Variable.java
Condition.java
RuleApplet$SymAction.class
RuleApplet$SymItem.class
RuleVarDialog.class
RuleVarDialog$SymAction.class
RuleVarDialog$windowEvents.class
Rule.class
RuleApplet.html
RuleBase.class
RuleVariable.class
Variable.class
Condition.class
Clause.class
RuleApplet.java
Rule.java
RuleBase.java
Clause.java

Then either access RuleApplet.html from a web browser
or through the appletviewer using:

	appletviewer RuleApplet.html

Note:  This code was tested using JDK1.1.8 which can be 
downloaded and installed from the site:

http://staff.um.edu.mt/mmon1/lectures/java

-----------------------------------------
MM2000