STRONGLY RECOMMENDED: Duplicate this page for each new idea!
Time to build! Identify 2-3 software products that may let you build what you've designed on worksheet #4.
Develop a list of requirements and categorize them: Dealbreakers, Nice-to-have, or Perfect World.
As you work through your requirements, flip back and forth between your drawings and your list of requirements. It's likely you'll tweak drawings and requirements as you develop these lists.