This tool helps you plan your prototyping and testing by looking at the risk areas of your solution. You can plan for a test early on to see if (parts of) your idea work as you expected. A prototype allows you to test your assumptions about how your idea will work before you invest in a fully developed solution. Generating a large amount of feedback from future ‘users’ of your solution, will result in a more relevant and successful solution.
Learn more and download the tool: https://toolbox.butterflyworks.org/tools/prototype-planning