Founder Heini advises rating five factors (a product that is 10 times better, customer acquisition potential, market growth potential, defense mechanisms, and implementation capability) from 0 to 3 points and "multiplying" them together. This is because if even one element scores 0, the total score becomes 0. It illustrates the harsh reality that no matter how large the market is, the probability of failure is high if there is no ability to create the product, or if the product is good but there is no marketing method.