Another +1 to learning the business domain and the jargon associated. I work in the real estate software industry, and our Rails app is nothing but models of le

Another +1 to learning the business domain and the jargon associated. I work in the real estate software industry, and our Rails app is nothing but models of leads, agents, brokers, properties, etc. Knowing that an Agent belongs_to a Broker and a Broker has_many Agents is invaluable and obvious once I understand a bit about how a real estate brokerage works.