From such analyses measures can then be taken to reduce the likelihood of errors occurring within a system and therefore lead to an improvement in the overall levels of safety.
HRA techniques have been used in a range of industries including healthcare, engineering, nuclear, transportation, and business sectors.
This figure assists in communication of error chances with the wider risk analysis or safety case.
By forcing consideration of the EPCs potentially affecting a given procedure, HEART also has the indirect effect of providing a range of suggestions as to how the reliability may therefore be improved (from an ergonomic standpoint) and hence minimising risk.
The first stage of the process is to identify the full range of sub-tasks that a system operator would be required to complete within a given task.
However, the operator is fairly inexperienced in fulfilling this task and therefore typically does not follow the correct procedure; the individual is therefore unaware of the hazards created when the task is carried out There are various assumptions that should be considered in the context of the situation: A representation of this situation using the HEART methodology would be done as follows: From the relevant tables it can be established that the type of task in this situation is of the type (F) which is defined as 'Restore or shift a system to original or new state following procedures, with some checking'.