RoR:在应用程序开发的准备阶段，您会经历哪些步骤?

Let's say you already "know" what your client wants from you (i.e. you already did some analysis and have some clue about what are you supposed to deliver). What are the next steps you usually go through after this phase? In other words, what are the steps (in terms of preparation of the framework, plugins, repository, etc.) you do in the beginning of Let's say you already "know" what your client w