What design methodology is based on a cyclical process of prototyping, testing, analyzing, and refining a system?

The design methodology that is based on a cyclical process of prototyping, testing, analyzing, and refining a system is iterative design. This approach emphasizes continuous improvement and refinement of designs through repeated cycles. By using this method, designers can identify and address potential issues early in the development process.

The iterative nature of this methodology allows for feedback to be incorporated from user testing and evaluations, which enhances the final product by ensuring that it better meets user needs and expectations. This process usually involves creating a prototype, gathering user feedback, making necessary adjustments, and then testing again, thus fostering a more effective and user-centric design.

In contrast, interaction design focuses on creating engaging interfaces while information architecture is concerned with organizing and structuring content. Low fidelity prototypes refer to basic and often less detailed representations of a product, useful for early-stage feedback, but they do not encompass the full cyclical process that defines iterative design.