Audience Analysis: Can You Get There From Here?
http://www.stc.org/confproceed/1994/PDFs/PG66.PDF

Blagg, Lynn and Carolyn K. Johnson
STC Proceedings
1994

Abstract:

As writers we face many pitfalls. One of the most challenging is trying to meet multiple audience needs -- once we identify the audience. Rarely do we have the luxury of knowing the members of our audience personally and, even if we did, bringing them to consensus would consume all our time. As writers we often decide what the readers in our audience need before the readers have ever seen our material. The analogy of map readers can help us focus on our clients' needs.