Fault trees are unique in their ability to gracefully handle graphic representations of large-scale, complex problems or systems. A fault tree provides a means to better understand the risks involved in a given system and how they relate to each other. The fault tree model can lead to a more accurate risk assessment and a quantitative method for assessing the merits of actions that may reduce risk. The motivation for modeling a risk with a fault tree is based on the observation that the probabilities of each lower level, component event can be more reliably assessed than the probability of the more complex top-level event. DPL Fault Tree is a straightforward yet powerful tool that offers the ability to intuitively build and analyze Fault Trees. Fault trees are used i...