WinNUPRA 3.1 that could have been downloaded from our website for free. The most popular versions among the software users are 3.1 and 3.0. The program lies within Education Tools, more precisely Science Tools. The most frequent installation filename for the software is: WinMain.exe. This free program was originally created by SCIENTECH, Inc.
From the developer:
WinNUPRA is a software package for performing probabilistic risk/safety assessments (PRAs/PSAs). This system, which consists of five major analysis modules, is designed to generate and analyze minimal cutset solutions of various fault trees and cutset equations for accident sequences. Operations are provided for direct solution of fault trees, for their minimum cutsets, and for Boolean manipulation (merging) of cutset equations.
You may want to check out more software, such as Travoltage or Deming, which might be similar to WinNUPRA.