An accident diagnosis methodology using influence diagrams

In complex systems such as nuclear power plants, it is necessary to model a logical representation of the overall system interaction with respect to the individual subsystems. For nuclear power plants, EOPs (Emergency Operating Procedures) help operators to diagnose and analyze accidents. But it is very difficult that operators diagnose and analyze similar accidents with EOPs in a given short time. There are also possibilities to follow wrong procedures due to complex and extensive procedures. Therefore, it is important to develop a methodology for diagnosing accidents in a short time and reduction of human errors that made by complex signals and indicators