An algorithm and structure for creation, definition, and execution of an SPC rule decision tree

A method for analyzing test results. The method comprises selecting selected control rules for verification from a plurality of stored, accessing selected test results, performing selected statistical analyses of the selected test results, and executing at least one action of a plurality of selected actions, wherein the plurality of selected actions is selected by a result of the selected statistical analyses. The plurality of selected control rules are arranged in a decision tree. The decision tree comprises a schedule for verification of the selected control rules. A selection of the test results is defined by the plurality of selected control rules. A selection of statistical analyses is defined by the plurality of selected control rules and the decision tree. There is at least one action selected by the decision tree.