Generally speaking, Grounded Theory is an approach for looking syslemafibally at (mostly) qualitative data (like trancsripts of interviews or protocols of obseruations) aiming at the generation of theory. Sometimes, Grounded Theory is seen as a qualitative method, but Grounded Theory reaches farther: it combines a specific style of research (or a paradigm) with pragmatic theory of action and with some methodological guidelines.This approach was written down and sysfematized in the 1960s by Anselm Sfrauss (himself a student of Herbeft Blumer) and Bamey Glaser (a student of Paul Lazarsfeld), while working together in studying the sociology of t7lness at the University of California. For and with their studrbs, they developed a methodology, that was then made axplicit and became the founding stone for an important branch of qialitative sociotogy. tmportant boncepts of Grounded Theory are categories, codes and codings. The research principle behind Grounded Theory is neither inductive nor deductive, but combines both in a way of abductive reasoning (coming from the works of Charles S. Peirce). This leads to a research practice where data sampling, data analysis and theory development are not seen as disfincf and disiunct, but as different sleps to be repeated until one can describe and explain the phenomenon that is to be researched. This stopping point is reached when new data doesnt change the emerging theory anymore. Grounded Theory according to G/aser emphasizes induction or emergence, and the individual researchers creativity within a clear frame of stages, while Sfrauss is more interested in validation criteria and a systematical approach. This methodicalway of creating Grounded Theory @nd still be acpeptable to scientific standards) is explained rn Sfrauss/Corbin (1990).