Decision trees are one of the methods
for describing decisions, while avoiding difficulties in communication.
CONDITION ACTION Order is signed Begin order verification process. Order is unsigned Begin merchandise acceptance processing.
CONDITION ACTION Size of order : Over $ 10,000 Take 3 % discount form invoice total.
$5,000 to $10,000 Take 2 % discount form invoice Less than $5,000 Pay full invoice amount. condition condition condition condition condition condition condition
6.4.3.1 Decision – Tree Characteristics A decision tree is a diagram that presents conditions and actions sequentially and thus shows which conditions to consider first, which second, and soon. It is also a method of showing the relationship of each condition and its permissible actions. The diagram
resembles branches on a tree, hence the name. The root of the tree,
on the left of the diagram, is the starting point of the decision sequence. The particular branch to be followed depends on the conditions that exist and the decision to be made. Progression from left to right along a particular branch is the result of making a series of decisions. Following each decision points is the next set of Action Action Action Action Action Action Action
decision to be considered. The nodes of the tree thus represent conditions and indicate that a determination must be made about which condition exists before the next path can be chosen. The right side of the tree lists the actions to betaken depending on the sequence of conditions that is followed.
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