Nonintrusive
Nonintrusive refers to approaches, methods, or instruments that avoid causing disruption, alteration, or direct contact with the subject or system being studied. In practice, nonintrusive methods aim to observe, measure, or interact in a way that preserves normal operation, privacy, and safety. The term is often used as an antonym of intrusive or invasive and implies a preference for minimal interference.
In research and data collection, nonintrusive methods reduce bias and ethical concerns by relying on observation,
In healthcare and safety, nonintrusive monitoring uses surface sensors, cameras with privacy-preserving processing, wearables, radar or
In software engineering, nonintrusive instrumentation analyzes software behavior via external interfaces, logs, or lightweight agents that
Limitations include potential compromises in accuracy, latency, or completeness compared with intrusive methods, and concerns about