Product quality: belief or proof?
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Software quality in embedded products is hard to verify and shouldn't rest on vendor reputation alone. Different embedded components vary widely in testability: assemblers can be tested near exhaustively, while compilers face infinite possible inputs. RTOS kernels can be stress-tested, but networking stacks and other subsystems add complexity. Buyers should actively probe vendor QA processes rather than accepting a salesman's confidence as proof. Historical examples like VRTX's 'Bug for a Bug' VW Beetle campaign illustrate creative ways vendors have tried to demonstrate quality.
