(extra) Heinrich’s Law

  Heinrich’s Law is a law revealed that before catastrophic failure occurs, the signs and minor accidents associated with it is always present.
  It is a law that has been introduced in the book called <Industrial Accident Prevention: A Scientific Approach> the 1931 Herbert William Heinrich issued. Through the analysis of industrial accidents, Heinrich was in contact with many accident statistics and have found the statistical law of one. It was the fact that when occupational accidents occur, serious injuries comes out one, there were injured 29 people, were 300 potential people obvious wounded in the same cause before occurred. Heinrich's law is also referred to as the law of 1:29:300. In other words, proportion of the incidence of massive accidents and small disaster and minor disaster is 1:29:300.
  He have demonstrated the fact that there is a several signs and warning of the multiple times during the period before. That is a big disaster - they will be generated when you leave the trivial at all times. We can prevent failures and large accidents to examine closely this when a minor problem occurs, to understand the cause and to correct the inadequacies, but we ignore and left this though there are signs, Then, it may spread to major accidents irreparable.
  Law of Heinrich has been interpreted not only disaster in the labor field and is deployed in a law related to a failed social, economic and personal crisis or disaster, and various accidents.