Write Once, Use Many: Why and How We Make Product Information Modular
http://www.stc.org/ConfProceed/1993/PDFs/Pg462465.pdf

McClelland, Patricia J. and Alison Bourdel
STC Proceedings
1993

Abstract:

Faced with growing demand from customers for specific courses, addressing only their needs, in very short time-frames, we had to re-examine the way we worked. Patching together one-shot customized coursework was labor-intensive for a non-homogeneous and unsatisfactory result. Each new customer request required repetition of the same amount of effort. With reduced turnaround time and dwindling human resources, a solution had to be found.