Q: Is a human reliability very important due to the contributions of humans to the resilience of systems and to possible adverse consequences of human errors or oversights? ¶
A: Yes, and especially when the human is a crucial part of the large socio-technical systems as is common today.
Q: Is a human reliability a straightforward extension of probabilistic risk assessment : in the same way that equipment can fail in a power plant? ¶
A: Yes, so can a human operator commit errors.