University of Texas at Austin. CS – Game Technology. Don Fussell. CS Computer Game Technology. AI – Decision Trees and Rule Systems. The two are pretty different. The real indicator is in the names. Decision trees are just for making decisions. Behavior trees are for controlling. That is an interesting question. A decision tree is something that we build using data from a source. Like sales reports from a supermarket. This data will then be used. Colins Blog Previous blog posts: Randomness russian mafia game Computing, Game Trees Unit. Decision tree for "First to 2 heads". Text Mining of Stack Overflow Questions. We start at the root, and based on some evaluation, choose 1, 2 or 3. Save your draft before refreshing this page. Please email errors quora.