Design a Real-Time Sensor Intelligence System

I’ll anchor the design in a concrete product assumption: a wrist-worn safety wearable for older adults that continuously detects falls, recognizes basic daily activities, and can send emergency alerts. This makes the ambiguous requirements testable while keeping the architecture applicable to other real-time sensor products. 1. Target use cases and success metrics Primary use cases Detect a fall within seconds and trigger an emergency alert to a caregiver or monitoring…