摘要: During the past 30 years a paradigm shift in evaluation of medical treatments has occurred. Not only change clinical symptomatology or survival span but patient’s own view her his health state is now considered an criterion for . The term “healthrelated quality life” reflects this conceptual change. Although maintaining even improving life been long-standing moral imperative any patient-physician encounter, assessing patients not implicitly relationship also explicitly measuring it evaluating new. acceptance “quality does reflect critique classical endpoints and related to recent developments population health. increase elderly, potentially chronically ill populations need long-term treatment as well financial cutbacks almost all systems world-wide demand critical review care delivery criteria its quality. development research extends basically over last twenty years, which according literature search 30.000 publications have appeared concerning methodological approaches application different studies. origins politics, can be seen concept “pursuit happiness” essential component governance. In social sciences including sociology, politology, anthropology, psychology, already