1. Montanuniversitaet Leoben, Department of Economic- and Business Management, Franz Josef Straße 18, 8700 Leoben, Austria
2. TU Wien, Research Group of Smart and Knowledge-Based Maintenance, Theresianumgasse 27, 1040 Vienna, Austria
3. (Corresponding author) Montanuniversitaet Leoben, Department of Economic- and Business Management, Franz Josef Straße 18, 8700 Leoben, Austria