The technique that should be used to frame the design challenge on the right problems is to construct "How might we..." questions. "How might we..." questions are a way to reframe problems into opportunities for innovation. They are open-ended, optimistic, and user-centered, and they help define the scope and direction of the design project. Designing "For an optimal experience..." questions or creating "As a user, I should..." questions may not be effective for framing the design challenge, as they may imply or limit potential solutions.