Engagement (or content usage and interaction).

Engagement refers of how audiences are using the content. It covers how they perform tasks, and what selections and actions they take. Engagement is about the quality of audience interaction with content: whether content meets audience needs, and how to adjust information so that it better answers their questions and supports their goals. Engagement then is more than the likability of content, or superficial indicators such as numbers of clicks. Navigation, filtering, recommendation engines, personalization, and questionnaires are tactics that can guide users to locate the most appropriate content and improve engagement.