This book shows what kind of theoretical and methodological bases should pertain to contemporary job analysis. The authors describe the European Questionnaire for Job Analysis as a new psychometric and econometric tool to measure the specific job requirements for work efficiency in the particular job positions in a company. Job analysis is primarily an object of interest in work and industrial psychology. However, currently there is an increasing number of interdisciplinary researchers, that is psychologists collaborating with economists, sociologists and other social science representatives, on work position analysis. The attractiveness of such research projects lies both in their theoretical and methodological mutual enrichments of collaborating psychologists and economists as well as in the subsequently increasing work efficiency and job satisfaction of the persons employed on the particular work positions.