Jump to navigation Jump to search
no edit summary
=== Control thinking ===
In 1990 psychologist James T. Reason proposed the Swiss Cheese metaphor as an accident causation model. Reason hypothesized that hazards are prevented from causing losses by a series of controls, known as controls in the bowtie method. He states that these controls however are never 100% effective. Each control has unintended (inconstant) weaknesses and when these so called ‘holes’ line up a hazard can be released. According to Reason the common causes of the weaknesses in controls can often be found in the organisation (latent failures). E.g. cost & time cutting on maintenance management can eventually lead to the deterioration of the integrity of many hardware controls within a system. In the Bowtie method these weaknesses are defined as Escalation Factors and are important features to fight the illusion of control that organisations sometime tend to have.
Continue to the cge website > []

Navigation menu