Metrics are commonly used to assess effectiveness. Playback logs and system metrics offer technical confirmation. In real environments, audience behaviour determines effectiveness. A screen can be active, still have limited impact. Recognising the difference supports better planning. when content fits attention patterns. Limits of data-driven evaluation Logs confirm delivery. It https://andrewworkreflections.loginblogin.com/47712764/everyday-notes-on-digital-signage-systems