00570pamaa2200181 4500 0000041035 20070720090000.0 0471178314 QA76.9.U83 HAC 1998 Hackos User and task analysis for interface design JoAnn T. Hackos and Janice C. Redish. New York: Wiley, 1998. xix, 488p.: ill.; 25 cm. Includes bibliographical references (p. 439-446) and index User interfaces (Computer systems) Redish, Janice http://www.wiley.com