Let's take the following deterministic example where *Z* is an Exclusive Or between *X* and *Y*, i.e. true when *X* and *Y* are different. The analysis of the relations with Mutual Information (**Validation Mode: Analysis | Visual | Arcs' Mutual Information**) returns the following graph where the mutual information between *X* and *Z* and *Y* and *Z* are both null. Indeed, X and Y do not have any impact on Z when they are analyzed separately. On the other hand, the force of the arcs computed with KL (**Validation Mode: Analysis | Visual | Arc Force**) reflects perfectly the deterministic relation between of *X* and *Y* on *Z*. |