1. Media Faculty, Hochschule Mittweida, Mittweida, Germany
2. Computer Science Department, Hochschule Mittweida, Mittweida, Germany
3. Faculty of Computer Science/ Management, Chemnitz University of Technology, Chemnitz, Germany
4. Media Department, Hochschule Mittweida, Mittweida, Germany
5. Department of Economics, Hochschule Mittweida, Mittweida, Germany