It serves as proof of concept so there is no excuse for not using similar methods in public education. (nancyebailey.com)
They must also have a validated proof of concept in terms of being able to get into an established retail channel, have a good velocity of sales and generate loyal consumers. (fooddrink-magazine.com)
In addition to raising money, a successful crowdfunding campaign creates visibility and provides proof of concept. (entrepreneur.com)