Terrestrial Trunked Radio (TETRA), a complex communication system is mainly used by public safety organisations. As the TETRA technology is included in a category of industrial goods called complex products and systems (CoPS), this communication system is the candidate CoPS example. In all business contexts, complex information technologies bring productivity gains for the organisation only when the target group uses the system in the way it is supposed to be used. There are determining factors that motivate an end user to accept/use a technology. The underlying study investigates the factors influencing the acceptance of the TETRA technology on the end-user level. The theoretical model is based on Davis Technology Acceptance Model (TAM). A qualitative pre-study was followed by a broad empirical assessment in quantitative terms. Results confirm the original TAM core constructs. Further, the specific extension of the traditional TAM is especially valuable, as for example this study proves the high significance of the influence of perceived system interoperability. The overall model provides valuable theoretical input for further technology acceptance studies. Это и многое другое вы найдете в книге Technology Acceptance of Complex Products and Systems: The Case of Terrestrial Trunked Radio (TETRA) (Christin Maria Hainbuchner)