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LOGAN for Windows is a program for the construction, evaluation and printing of Fault and Event Trees in the Microsoft Windows™ environment. Fault trees can be linked to event trees by specifying the fault tree which calculates a branch probability. If the fault trees contain common events, the effects of the resulting non-independence are fully accounted for.
The system uses the Windows Graphical User Interface for the construction of Fault (or Success) Trees and Event Trees. The system lays out the diagrams automatically for optimum presentational clarity.