Wolfgang Glatzer Johann Wolfgang Goethe-Universitiit Franlifurt am Main, Germany ABSTRACT Challenges for the quality of life in the contemporary world were the focus of the Fifth International Quality of Life-Conference in Frankfurt am Main in the year 2003, hosted and organized by the Interna tional Society for Quality of Life Studies. The first part of this introductory article is concerned with a general assessment of contemporary quality of life research. At present, the concept of quality of life is a kind of umbrella which keeps together a reasonable number of international social...