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Engineering / LASTASOFT PERSPECTIVES
Good Architecture Starts With Clear Boundaries
A perspective on organizing an early product so that changing it stays understandable.
Map responsibilities before technologies
A product needs a clear account of what each part is responsible for. Where are business rules defined? Which system owns a piece of information? What should happen when an outside integration is unavailable? These questions make an architecture conversation concrete before it becomes a discussion of tools.
Keep important rules visible
A rule such as who can change an order or when a booking is confirmed should be easy for the team to locate and explain. If the same rule is independently interpreted in several places, a small change can become a coordination problem. Our preference is to make these responsibilities explicit and document the decisions that are easy to misunderstand.
Leave room to learn
An early product will change. That does not mean designing every possible future feature today. It means separating concerns where they genuinely differ, keeping integrations understandable, and being honest about the tradeoffs being made. A useful architecture is one the team can explain, operate, and revise.