After half a century since the appearance in 1955, Katz at Harvard Bussines Review article, their approaches still are cited with respect by contemporary authors such as Hersey et alt. (op. cit., p. 15), Robbins (op. cit., p. 5) and Davis and Newstrom (op.

cit., pp. 195-196). 7. Fundamental concepts of organizational behavior whatever the hierarchical level which deal with the Manager (supervisor, medium or high Executive Directors), its work involves relationship with other individuals within the framework of an organization. The ability to describe, explain, predict, and up to where permitted, controlling the behavior of the man at work, then becomes especially relevant.

Organizational behavior, discipline, provides managers of knowledge and techniques to tackle such a complex task. Organizational behavior has its philosophical basis in a series of concepts about the nature of people and organizations. Such concepts oriented to the Manager in the understanding of his own conduct and others and on the understanding of organizations. And, of course, serve as guiding their conduct guides. Davis and Newstrom (op. cit., pp.10-14) propose nine fundamental concepts of organizational behavior, which grouped into two categories: those related to persons and the relevant organizations. 7.1 Concepts related to the nature of persons: 7. 1. 1. Individual differences every person is a human being unique and unrepeatable. Each one has its own personality, formed by the autodidactic combination of hereditary and learned factors. For this reason, each individual responds to interests, needs, background and different expectations. A good manager must recognize and value this diversity. And avoid the temptation to give a standardized treatment to persons to which it relates. 7.1.2 Perception each person sees, organizes and interprets its environment in a different way, through a filter consisting of beliefs, values, needs, expectations and experiences. The physical environment, social context, or the chronological stage that is living, also affect the perception that each person has of reality.