Related links
Jeff Sauro's data shows the average task-completion rate is 78%, with 70% as the 'good enough' threshold. Useful when you need a benchmark number to judge your own usability test results.
jeff saurousabilitybenchmarksmeasuringutask completion
Jenny Chang sets a success metric for each design at Amplitude, so the team celebrates hitting the metric, not shipping. Useful when design teams want a habit that ties every project to a measurable success bar.
workflowsdesign metricsamplitudesuccess metricsproxy metrics
Maximilian Speicher, PhD
Maximilian Speicher argues conversion rate and AOV aren't UX metrics - real measurement needs an instrument like UEQ. Useful when teams default to revenue numbers as proxies and miss what UX is actually doing.
ux metricsmeasurementueqconversion rateinstruments