Issue No. 03 - May/June (2004 vol. 6)
DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/MITP.2004.20
User-interface designers create a persona, or fictional user composite, and use it to create detailed task scenarios—before defining the first product feature.
C. Merrill and D. Feldman, "Rethinking the Path to Usability: How to Design What Users Really Want," in IT Professional, vol. 6, no. , pp. 51-57, 2004.