There are companies before you who have done something like you want to do that you can copy from, and others who have also done something similar, but that you choose not to copy from. These are your analogs and antilogs respectively. The process of going from Plan A to a plan that will work is to begin with these.
For instance, when Steve Jobs of Apple decided to get into the music business that eventually completely changed Apple as a company, he had a whole range of analogs and antilogs he could refer to. Sony Walkman had sold over 300 million portable music players, so he knew there was a demand for portable music. Also, people were (illegally) downloading music from Napster, so he knew that they were open to downloading music online (as opposed to buying CDs). Jobs also had a key antilog, which was Rio, the first mp3 player that had a terrible interface and was rather clunky.
http://swombat.com/2014/9/1/antilogs-right-lesson-learned