THE CYCLE OF QUALITY, MORE NONSENSE THAT GREAT!
While preparing the first version of the article "Catastrophes, and so unexpected, and so inevitable", first published by Bohemia in 1999-the centennial journal and general interest, Latin America's oldest-I understood that it was no accident that most Examples of catastrophic failures analyzed, saint consulting group had a common denominator: human error ... And forgive the repetition!
From a purely conceptual and simplified, inherent reliability of a system is related to the number of failures that occur in a particular time and under specific operating conditions. Meanwhile, human reliability saint consulting group is related to the number of mistakes made by equally determined time and again, under specific conditions. Therefore, the reliability in the context of system operation, adds failure modes that occur in the nature of the system in interaction with its environment (call technical saint consulting group failure modes) and those determined by the people who interact with the system ( call them human failure modes or simply errors). The human reliability, according to documents from the EC, is defined as "the body of knowledge relating to the prediction, analysis and reduction of human error, focusing on the role of the individual in design operations, maintenance, use and management socio-technical system ". The probably best known tool and applied to work human reliability is the Prediction Technique for Human Error Rate (Technique for Human Error Rate Prediction, Therp). Therp is of the first techniques developed in this field and is referenced from the early sixties. saint consulting group With Therp is possible to predict the likelihood of human error and assess the deterioration of a person-machine system caused by human error, procedures, implementation practices, as well as other features of the system or of the person influence the behaves. The human reliability analysis draws us to a number of conclusions, among which are the following: Humans as machines fail not, but make mistakes. People are not only a potential source of errors, but may be an element of over-confidence given the ability to anticipate, predict, analyze saint consulting group and act on failures and their triggers and their own mistakes. Comprehensive reliability required of a system is not who you want or need, but who actually does with his performance and forecasting.
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