Is it Safe?: The Safety Assessment of Aircraft Systems

As was discussed in the last article, the requirements for system safety are often couched in terms of the maximum permissible probability of occurrence. In many cases a part of the safety assessment involves estimating the probability of the various effects which originate from failures of components in the system. The probability methods used are generally quite simple. While this article makes no attempt to teach the reader statistics, it does try to give an insight into the practical applications.