Of general form, the scientific theories can be analyzed in two perspectives. First, they consist of analyses of the relations between the scientific statements. In this direction, scientific explanations look for to describe the logical structure them. In as aspect, the scientific theories express the concern with the proper nature of Science. In this as direction, they answer questions on what it is scientific progress, what they are scientific problems and when is that a solution can be considered satisfactory. The scientific theories look for, still, to establish definitive objectives in function of which the characteristics are defined that must possess the scientific statements. For ideology, the set of beliefs for a social group is understood, and that it only possesss the validity to express parts of the relations politics, economic and social.
It serves, therefore, for the defense of the interests that prevail in each phase of these relations. It was accurately with this direction that the ideology was studied for the first time in Treated to General Sociology (1916) of Vilfredo Pareto, although, in this workmanship, not to be used the term ideology (that it are employed in Sistemi Socialisti, of 1902). In Pareto, the ideology notion corresponds to the notion of not-scientific theory, understanding itself for this last any theory that is not logical-experimental. According to Pareto, a theory can be considered: they a.em its objective aspect, in confrontation with the experience; they b.em its subjective aspect, in its force of persuasion; they c.em its social utility, for it produces who it accepts or it. Under the first aspect, the theories are analyzed independently of it produces who them and of it adopts who them. The criterion of logical-experimental, only analysis is the comparison with theories that they can be considered scientific according to Pareto. The scientific or logical-experimental theories are evaluated objective, but not in the other ways, because its objective is not to persuade.
