Lilla Knop, Marek Krannich, and Slawomir Olko (2011) identify the factors affecting success at each development stage of industrial cluster divided into six aspects: (1) awareness; (2) goal of industrial cluster development; (3) innovation; (4) knowledge; (5) structure and (6) trust, which are applied in this research for the investigation of factors that affect success in each stage of industrial cluster development.