The Article originally posted:
Modeling is an activity that has been carried out over the years in software development. When writing applications by using the simplest languages to the most powerful and complex languages, you still need to model. Modeling can be as straightforward as drawing a flowchart listing the steps carried out by an application. Why do we use modeling? Defining a model makes it easier to break up a complex application or a huge system into simple, discrete pieces that can be individually studied. We can focus more easily on the smaller parts of a system and then understand the "big picture."