Mockups are visual representations of a design or product that simulate the final product's appearance and functionality. They are essentially a final product prototype but with limited functionality. Mockups can be created for various products, from websites and mobile apps to physical products like packaging or industrial equipment. They are used to test and refine design concepts, gather feedback from stakeholders, and identify potential problems or areas for improvement. Depending on the developed product, mockups can be created using various tools, including pen and paper, digital design software, or even 3D printing technology. Overall, mockups are an essential part of the design process, helping to ensure that the final product meets the needs and expectations of its users.