ABSTRACT

The second PoF-based failure behavior modeling method is the Failure-Rate-oriented (FRoriented) method. The method uses failure rates as a measure of system failure behaviors. A typical example of the method is the RAMP method developed by IBM cooperation (Srinivasan et al. 2003). Under the assumptions of constant failure rate and failure competition, the method firstly calculates the Mean Time To Failure (MTTF) of each component from corresponding PoF models. Then, failure rates of the system are established by summing up all components’ failure rates.