perceived risk assessment
In the last years, IT systems play a more and more fundamental role in human activities and, in particular, in critical activities such as the management of Air Traffic Control and Nuclear Power Plant. This has spurred several researchers to develop models, metrics, and methodologies for analyzing and measuring the security and dependability of critical systems. Their objective is to understand whether the risks affecting the system are acceptable or not. If risks are too high, analysts need to identify the treatments adequate to mitigate them. Existing proposals however fail to consider risks within multi-actors settings. Here, different actors participating to the system might have a different perception of risk and react consequently. In this paper, we introduce the concept of perceived risk and discuss its differences with actual risk. We also investigate the concepts necessary to capture and analyze perceived risk.
perceived risk risk assessment subjective input