Systems should always keep people informed of what is going on. People make better decisions when they understand what is going on. Predictable behaviors and interactions create trust in the system and—ultimately—the brand. Clearly communicate what state the system is in. Inform users of any consequences an action they can take would have on them or others. Provide feedback that an action was successful or unsuccessful as quickly as possible. --- ## Reference [[Jakob Nielsen]]. “10 Heuristics for User Interface Design: Article by Jakob Nielsen.” *Nielsen Norman Group*, 24 Apr. 1994, [www.nngroup.com/articles/ten-usability-heuristics/](http://www.nngroup.com/articles/ten-usability-heuristics/). Accessed 1 Mar. 2021.