Final answer:
A prototype based on usability testing, facility, and extending services in the business concept of a biomedical research center would involve testing and evaluating the design to ensure it meets all constraints and criteria.
Step-by-step explanation:
A prototype based on usability testing, facility, and extending services in the business concept of a biomedical research center would involve testing and evaluating the design to ensure it meets all constraints and criteria. Usability testing would focus on the ease of use and functionality of the center's facilities, such as research equipment and technology. The prototype would also aim to extend services by identifying potential problems and refining the design to improve performance.