Quality Assurance

Architecture improvement is a change to the shape of the system — boundaries, data ownership, runtime topology — not a

A performance issue is a missed latency, throughput, or cost budget — not “the server feels slow.” Start from a

Software metrics are numbers that change how you act. If a dashboard cannot change a decision this week, it is

End-to-end tests drive the system as a user or client would: browser, or real HTTP against a composed environment. They

A code smell is a surface hint that a design may be rotting. It is not a compiler error and

Quality assurance is the system that makes “we meant to” into “we would have caught that.” Testing is a subset.