Finally, you need to test and validate your options and scenarios to see how they work in reality. Experimentation is a method that helps you test your options and scenarios in a controlled environment. You can use a hypothesis, a variable, and a measure to design and conduct an experiment and observe the results. Simulations are also useful for testing your options and scenarios in a virtual or artificial environment. You can use a model, a scenario, and a measure to create and run a simulation and analyze the results. Additionally, feedback is an effective method of testing your options and scenarios in a real or social environment. You can use a prototype, a sample, and a measure to present and demonstrate your options and scenarios to others and collect their feedback.