Business Idea

Right now, I am at the very beginning phases in developing a business. I have ideas but my group and  I are having trouble determining if we could actually do the ideas. For example, we have an idea that involves developing an app which I do not have knowledge in. In order to get this idea going, we would have to contact multiple app developers to try to get it going. Another idea we have is a fridge for a car, but the technology would be tough to keep in cold. What would it plug into? Would the car have to be running in order for it to work? These are a few of the many questions and potential problems we are facing, but we will work these issues out in order to find the right idea and make a business out of it.