Towards Defense-in-Depth of Human-Machine Interaction

摘要

The paper presents the potentiality of Combinatorial Context Model (CCM) for context quantification of the cognitive human erroneous action. In order to demonstrate the crucial impact of violations on the post-accident context and human reliability a Violation of Objective Kerbs (VOK) method is proposed. The VOK provides a way of accounting for the probability of aberrant circumstances (prior to the initiating event) in cognitive function. The VOK adjustment of CCM to the new Performance Evaluation of Teamwork (PET) method for obtaining non-response probability curves is presented. The CCM employs the Human Cognitive Reliability (HCR) correlation idea for taking into account the context influence through the correlation between the changes of 'time window' and 'context window' rates. The new point here is that the 'context window' rate is used as a mirror image of cognitive function. The illustrative example, of the numerical analysis by VOK and PET methods, is presented in order to understand the cognitive error sensitivity to violation. The context quantification together with reliability models of the cognitive process (Rasmussen's SLM) and group communication process included in the PET method makes it possible to find, interpret and assess new characteristics of human actions, and to accomplish Defense-in-Depth of HMI.