Tree-drawing programs

The unrooted tree was generated using the program Phylo Draw. 

A fault tree for anything but the simplest of plants can be large, involving thousands of process events. Fortunately, this approach lends itself to computerization, with a variety of computer programs commercially available to draw fault trees based on an interactive session. 

Figure 7.4 is a typical branch of a large fault tree. There are a number of ways to solve a fault tree top-down substitution, bottom-up substitution, and even using Monte Carlo simulations (with actual failure data). Also, a number of computer programs can solve (and draw) the tree. It is impossible to keep up to date with the changes in software programs for fault trees. Here are some of the software programs on the market ... 

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