Prototyping and testing tools are available for different product types and purposes. For physical products, 3D printing, laser cutting, CNC machining, or molding can create models, while sensors, microcontrollers, or Arduino can add interactivity. Load cells, strain gauges, or accelerometers can measure physical properties and performance. When it comes to digital products, wireframes, mockups, or prototypes can be used to create visuals; coding languages, frameworks, or libraries can add interactivity; and analytics, user testing, or A/B testing can measure user behavior and satisfaction. For service products, service blueprints, customer journey maps, or personas can create scenarios and stories; role-playing, simulations, or experiments can add interactivity; and surveys, interviews, or observations can measure customer needs and expectations.