Metrics are commonly used to assess effectiveness. Playback logs and system metrics provide useful insight. In real environments, human response shapes outcomes. 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://andrewoperationsjournal.thezenweb.com/how-digital-signage-systems-are-structured-78091885