On What Structure(s) Is Modular Design Based? Briefly Define Each

Short Answer

On what structure(s) is modular design based? Briefly define each of the structure types.
1. Sequence. The completion of steps in sequential order, one after another. One or more of the steps might represent a subprocess that contains additional logical structures.
2. Selection. The completion of one of two or more process steps based on the results of a test or condition.
3. Iteration. The completion of a process step that is repeated until a specific condition changes. An example of iteration is a process that continues to print paychecks until it reaches the end of the payroll file. Iteration also is called looping.Sequence, selection, and iteration structures can be combined in various ways to describe processing logic.