Short Take 22: Converting Decision Tables to Flow Charts with DTREDUCER

1 introduced decision tables in Short Take 14 (Werner 1994b:6-8). These are first-rate dictation tools for developing decision models, but are difficult to read in the presentation of those models. Flow charts and decision trees are easier, and in Short Take 14 I also introduced a method for converting decision tables to flow charts. The method involves repeated application, by hand, of a reduction rule to the decision table matrix, thus eliminating redundancy. When reducing large matrices of yes's and no's, however, it is very easy to make mis-takes.