||Discrete Optimization problems are ubiquitous. Whenever there is a choice between several possibilities, there is an inherent optimization problem. Our core competence in this area is to recognize such optimization problems, to establish mathematical models, to tackle them by state-of-the-art methods, and to invent new techniques to obtain satisfactory results. Our research is application-driven. This also includes inter-disciplinary research with collaborators from Engineering, Physics, Chemistry, Biology, Economics, etc.