ABSTRACT
Categorizing and graphing the causes of mistakes resulted in over 80 percent of them being due to the failure of the decision maker to take one more step before making the decision that resulted in an error, some costlier than others. These failures and the percentages of mistakes that were attributed to them are (1) the failure to consider all aspects of the project (36.4 percent), (2) the failure to ask others for assistance (27.3 percent), and (3) finally, the failure to consider all costs of the operation (18.2 percent).
