Which technique is used for hand-drawing to design and present ideas?

Freehand sketching in 2D and 3D is a fundamental technique used in design that allows for the immediate visualization and exploration of ideas. This technique involves drawing without the constraints of precise measurements or technical instruments, which promotes creativity and spontaneity. Designers often utilize freehand sketching to quickly convey concepts, illustrate forms, and visualize spatial relationships.

By sketching in both two dimensions and three dimensions, designers can effectively communicate their thoughts and designs to others, whether during the ideation phase or when presenting ideas to clients and stakeholders. The flexibility of freehand sketching allows for rapid modifications, enabling designers to iterate on their ideas effectively.

While digital rendering and graphical modeling software are powerful tools for creating detailed and polished visuals, they typically require a level of technical skill and software proficiency. Technical specification writing, on the other hand, focuses on documenting the details of a design rather than illustrating it. Freehand sketching remains a valuable technique that bridges the gap between initial concept and detailed design.