Accessibility in User-Centered Design: Personas
http://uiaccess.com/accessucd/personas.html

UIaccess
2007

Abstract:

Personas are "hypothetical archetypes" of actual users. They are not real people, but they represent real people during the design process. A persona is a fictional characterization of a user. The purpose of personas is to make the users seem more real, to help designers keep realistic ideas of users throughout the design process.