**3.1 Intelligent user interfaces goals**

In **Figure 2** a few of the most critical issues encountered in intelligent user interfaces are illustrated [28]. These challenges are targeted at achieving the ultimate target of intelligent user interfaces: improving the overall usability of the machine.

As in **Figure 2** the reader will observe that certain human capacities are included, such as understanding, adaptation, logic or simulation of the world. Many of those strengths are study lines established from the very beginning of this field of Artificial Intelligence. Many academic reports on artificial intelligence claims that intelligence is a program that can be executed regardless of the platform on which it is executed, irrespective of whether it is a machine or a brain. Two models, the user conceptual and the execution of one of the machines, must create a sort of equilibrium and comprehension when the user communicates with an item. The user uses a concrete vocabulary of operation defined by the input devices and the metaphor for which the user interface has been developed. On the other side, by conforming the contents, displaying it, the artifact must interpret the feedback and respond to the interaction, and it should also be able to determine the interaction mechanism itself and make conclusions as to how useful it is.

There are several areas of Artificial Intelligence that bring approaches, strategies and ideas of vital importance to the development of intelligent user interfaces. Methods for providing learning capacities such as neural networks or Bayesian networks can be used in Artificial Intelligence, knowledge representation methods such as semantic networks or frames, decision models such as fuzzy logic, expert systems, case-based reasoning and decision trees, etc. We may work on the user interface by applying these inputs to the intelligent user interface by facilitating transformation, making its use simpler, analyzing interaction, simulating activities, leading the user or assisting the developer of the user interface.

**Figure 2.** *The most common objectives seen in intelligent user interfaces [24].*
