See https://github.com/Microsoft/calculator/blob/master/docs/NewFeatureProcess.md for suggestions on how to write a good feature pitch. Just want to submit an idea quickly? Try Feedback Hub instead: https://insider.windows.com/en-us/fb/?contextid=130
What problem are we trying to solve? Who’s the target audience? Is there a customer need or pain point we need to remedy? Is there a business goal or metric we are trying to improve? Do we have a hypothesis we want to prove or disprove?
Why should we do this? Potential sources of data: Feedback Hub, other GitHub issues, other anecdotes from listening to customers in person or online, request from another team, telemetry data, user research, market or competitive research
How will the solution/feature help us solve the problem? How will it meet the target audience’s needs? If there are business goals or metrics, how does this improve them?
Show as much of the experience as needed to explain the idea. This can be as simple as a napkin drawing but can also be a code prototype, or a design comp. Keep it simple at this stage, as it can be refined later during the pre-production stage.