Term Kind Topic What it is
Captive User Signal Mandated Tool Measurement, Workaround Count metric Product Thinking The small set of measurements that still carry information when users cannot choose an alternative - workarounds, time to first success, abandonment - because usage and satisfaction no longer do.
Guarantee Surface Promise Surface, Service Guarantee Footprint concept Product Thinking The set of customer-facing promises a product has made, each of which obliges the architecture to detect its own breach and pay for it - so this surface, not the feature count, drives a whole class of build cost.
Outcome over Output concept Product Thinking Measuring and committing to changes in user or business behaviour rather than to the delivery of features.
Product Thinking concept Product Thinking Treating what you build as something with users whose problems it must solve — applied to internal platforms as much as to customer-facing products.