The great importance of human aspects in industrial environments have changed the viewpoints of designers and developed Human-Centered design approaches. One of the fundamentals of this approach is to consider human factors at all stages of the design process. The integration of human factors in the design process phases requires effective use of the appropriate human models. This paper presents definitions of human models and their classification in industrial applications with emphasis on industrial design processes. We also focus on the application of the human models in a human-centered industrial system approach. Specifically, we discuss future approaches relevant to the use of human models in the virtual environment.