Prototype Testing Mastery Hub: The Industry Foundation Pract

In "The Complete Prototype Usability Testing Course 2026," what fundamental distinction does the course draw between a "prototype" and a "product" when discussing early-stage validation, and why is this distinction critical for effective testing?

probes a core conceptual understanding emphasized throughout the course. Option B correctly identifies that prototypes are intentionally incomplete, focused tools for hypothesis testing and feedback on specific aspects, distinguishing them from the complete, market-ready nature of a product. Option A inverts this relationship. Option C introduces an unnecessary and often incorrect distinction about the target audience for testing. Option D fundamentally misunderstands the purpose of prototyping in the design and testing lifecycle as presented in the course. Question: According to "The Complete Prototype Usability Testing Course 2026," when designing a usability test for a low-fidelity prototype, what is the *primary* objective that differentiates it from testing a high-fidelity prototype, and how does this influence the choice of testing methodology?

"The Complete Prototype Usability Testing Course 2026" introduces the concept of "testable assumptions." What is the most accurate definition of a testable assumption in the context of prototype usability testing, and what practical implication does it have for test design?