Google's Engineering Satisfaction (EngSat) survey, in use since 2018, measures developer productivity by combining survey insights with system-based metrics. The survey is conducted quarterly and has adapted over time to include consistent staffing, effective processes, and robust infrastructure. EngSat has helped Google track productivity changes, address technical debt, and validate new metrics. The program faces challenges such as increasing survey length and decreasing response rates, which are managed through strategic sampling and transparency in reporting. Google's approach offers valuable advice for other organizations wanting to implement developer surveys.
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