with theoretical predictions based on theoretical methodology related to the problems to be solved. The objective is to determine that the subtasks and the overall program are correct and accurate. The additional debugging in this step is to find and correct logical errors (e.g., mistyping of expressions by putting a plus sign where a minus sign was supposed to be) and runtime errors that may occur after the program successfully executes (e.g., cases where division by zero u nintentially occurs). Step 7 Application. Solve the problems the program was designed to solve. If the program is well designed and useful, it can be saved in your working directory (i.e., in your user-developed toolbox) for future use