Another very important parameter is associated with the content of the PSM. As we know, a number of external models must be included in the PSM, by the education process, so that the person is integrated in society. Unfortunately, a lot of models could enter in PSM, in an uncontrolled way. Some of these models could be bad models. They can be built, e.g. if a person is born and lives (at least in childhood) in a bad environment. For a person who has such bad models, there is still a chance to integrate in a normal society, by making some shielding models. However, a shielding model is, usually, not safe enough. Thus, in some situations, a person can act based on the bad models and not based on the shielding models which had helped him/her to be accepted by the society. Unfortunately, it is very difficult to know in advance the content of the PSM, because the PSM acts only in very special and critical situations. To be understood, this subject needs a lot of further work. Here we present a general theory. It cannot go beyond some limits because the technological implementation is, usually, not taken into account. However, based on the theory, it is possible to develop the subject for specific applications. Now we shall list some parameters associated with the personality, based on the above discussion. Some of the parameters associated with the personality could be: The orientation to image models The orientation to symbolic models The orientation to knowledge The orientation to action on external reality The orientation to make new models The orientation to assimilate new models The orientation on short-range models The orientation on long-range models The parameter associated with the diversity of action The parameter associated with the stability in a model The parameter associated with the conformity to society requirements The parameter associated with non-standard models from PSM A table could be made, for any person, with numerical values associated to the above parameters. To do this, a local model must be developed. That model has to contain a set of standard procedures to obtain such parameters. This chapter, which is associated with the personality, refers only to normal, mature persons (as these terms are already defined). The pathological cases are not taken into account here. In fact, to study the pathological cases is a nonsense before defining the normal situation. This general theory, as it will be developed for specific situations, is useful to understand also pathological cases. For instance, MDT defines XZM- models (illegal models) as models which are not integrated in the normal structure of models. Such models could be very important to issues related to the personality, but there are still few data about XZM models.