There are just as many notes as I required, neither more nor less.
—Mozart in the film Amadeus (Orion Pictures, Warner Brothers, 1984)
There are three things you are going to have to understand very clearly:
• What your Domain is
• What your Subdomains are
• What your Bounded Contexts are
Just because all these concepts were discussed in detail in the second half of [Evans] does not mean that they are of secondary importance. To succeed in implementing DDD, you have to get these right.