The system should always keep users informed about what is...
The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.
![Jakob Nielsen Quote About Feedback, Should, Appropriate: The System Should Always Keep...](http://qt.azureedge.net/resources/quotes-images-large/the-system-should-always-keep-users-informed-about-what-is-going-on-through-appr-d16bec6448dc65f9fedf57338823d719.jpg)
The system should always keep users informed about what is going on, through appropriate feedback within reasonable time.