Top Highlights

• Enterprise applications are about the display, manipulation, and storage of large amounts of often complex data and the support or automation of business processes with that data.
• There are two common elements: One is the highest-level breakdown of a system into its parts; the other, decisions that are hard to change.
• architecture is a subjective thing, a shared understanding of a system’s design by the expert developers on a project. Commonly this shared understanding is in the form of the major components of the system and how they interact.
• The architectural pattern I like the most is that of layers,
• This is the logic behind Alistair Cockburn’s Hexagonal Architecture pattern [wiki],