Need simple step-by-step solution for developing reputation-based mobile app

I have a brilliant idea for a reputation-based service, but don't know where I need to begin when it comes to finding someone who can develop it. I have since started to educate myself so as to learn how to make it work. What are the absolute essentials I need to know, spelled out in ten brief steps, in order to understand the kind of coding needed to build a web or mobile-based reputation platform?