NOTE

Software Architecture

Architecture as system-level decisions about boundaries, dependencies, deployment, data, quality attributes, and evolutionary trade-offs.

Software Architecture & EngineeringCreated 08/15/2021Updated 09/15/20261 min readhistorical

This is a historical learning note and may contain outdated or incomplete understanding.

Software architecture is the set of high-impact structural decisions that shape how a system is decomposed, integrated, deployed, operated, and evolved.

Good architecture begins from required quality attributes—availability, latency, throughput, consistency, security, operability, cost, and changeability—rather than from fashionable components.

Keep dependency boundaries explicit, make failure/data ownership visible, record important trade-offs, and leave room to evolve. Architecture is not a one-time diagram; it is a set of constraints and decisions continuously validated by the running system.