The inference mechanism in the decision supporting
system includes the decision table, logic gate, decision tree,
and fault tree etc. Decision tree analysis will be applied in
the system for decision support. A decision tree is a decision
support tool that uses a tree-like graph or model of decisions
and their possible consequences, including chance event
outcomes, resource costs, and utility.
In this study, we use the IF/THEN in the emergency
response system. Table 2 is the example of decision for an
episode by the IF (information) / THEN (action) operator.