Initial versions of the translation process research database (TPR-DB), were released around 2011 in an attempt to integrate translation process data from several until then individually collected and scattered translation research projects. While the earlier individual studies had a clear focus on quantitative assessment of well-defined research questions on cognitive processes in human translation production, the integration of the data into the TPR-DB allowed for broader qualitative and exploratory research which has led to new codes, categories and research themes. In a constant effort to develop and refine the emerging concepts and categories and to validate the developing theories, the TPR-DB has been extended with further translation studies in different languages and translation modes. In this respect, it shares many features with Grounded Theory Method. This method was discovered in 1967 and used in qualitative research in social science ad many other research areas. We analyze the TPR-DB development as a Grounded Theory Method.