Beyond Help: Making Help a Core Component of an Electronic Performance Support System
http://www.stc.org/ConfProceed/1999/PDFs/STC-12.pdf

Wexler, Steven S.
STC Proceedings
1999

Abstract:

With the advent of HTML Help and the ability to embed Help directly inside an application, there’s been an increased interest in creating Help systems that are seamlessly integrated with their host applications. By blurring the line between the application and the Help that supports it, and by developing Help that automatically responds to user actions, application developers and Help authors now have the ability to develop true electronic performance support systems (EPSS). With this new ability will come a paradigm shift in the ways applications are developed and documented.