With assumption mapping, you’ll be quickly evaluating each assumption on two dimensions. I recommend you start with assessing “How much do we know about this assumption?” In other words, what evidence do we already have that tells us this assumption is true or false? If we have a lot of evidence that it’s true, then we would place the assumption on the left side of the x-axis. If we have very little evidence, we would place it on the right side of the x-axis.
