Ph.D. Level courses The MCM-HSG offers Ph.D. Level courses. This page provides information about the courses on offer. Taxonomies and Typologies in Research Ph.D. (Prof. Dr. Martin J. Eppler) Taxonomies and typologies are of fundamental importance in many research endeavours, whether in analysing content, documenting case studies, preparing experiments, structuring observations, developing prototypes, elaborating concepts or conducting a literature review: Classifying an area, i.e. isolating its distinct attributes and organising them into groups, is a basic requirement for theory building. This Ph.D. course addresses this challenge by providing a systematic overview of classification, by offering pragmatic rules and standards for high-quality classification in research, and by giving Ph.D. students the opportunity to analyse and discuss seminal and innovative classifications within their field of research. They will also attempt to classify relevant research phenomena in their domain related to business innovation.