The KISS Principle stands for "Keep It Simple, Stupid" and is a mantra used by software architects when architecting systems. It implies that the best way to create an effective system is through simplicity and minimalism, rather than attempting to make the system overly complex with added features that are better left out. This can mean taking a step back from the architecture process to ask if certain elements are necessary and if their addition would be beneficial or just confusing. The KISS Principle also stresses the idea of breaking down abstract concepts into simpler ideas that are easier to understand and work together. In order for software architects to truly understand how all of these components function together, this simplified approach gives them a more comprehensive understanding of how the whole works.