Direct modeling is a design approach where a model’s features are manipulated directly without relying on predefined rules or parametric relationships. This method allows designers to modify geometry or components in real time, offering immediate visual feedback. It is especially valuable in iterative design processes, where quick and intuitive adjustments are needed. Commonly applied in CAD (computer-aided design) software, direct modeling simplifies complex tasks and provides flexibility for industries such as manufacturing, automotive, and product design.