READY, SET. . .

The task of designing programs can be time-consuming, difficult (in some instances) and, without question, intrinsically rewarding when the task is completed. A tool is presented for establishing (in a symbolic way) the logical relationships among parts of the data in a program, which will in turn provide a visual understanding of the logic of the relationship. The tool is the set theory. Some elementary knowledge of set theory is introduced to be used in evaluating and refining a problem - and even in visualizing the most efficient manner needed to sort the desired data elements. It is shown how this theory is used to prepare a list.