Only a small percentage of users open Help, and they usually do that only when they have trouble with the application. One way to reach a broader audience is to integrate assistance into the user interface so that people understand the product as they use it. This paper describes our reasons for moving in this direction, provides examples of integrated user assistance, and discusses issues and concerns inherent in moving away from traditional Help.
Raiken, Nancy, Diane Stielstra and Richard Bloch. STC Proceedings (1998). Design>Documentation>User Interface>Help