Jakob Nielsen is Distinguished Engineer for Strategic Technology at SunSoft (the software planet of Sun Microsystems). His main project is defining the next generation of strongly object-oriented user interfaces. He is also designing the user interface for Sun's next generation of online documentation and working on enhancing the maturity level of current usability engineering methodology. Nielsen coined the term "discount usability engineering" and has invented several usability techniques for fast and cheap improvements of user interfaces, including heuristic evaluation. He is the author of the best-selling books Hypertext and Hypermedia (second edition to be published by Academic Press in January 1995 under the title Multimedia and Hypertext: The Internet and Beyond) and Usability Engineering and co-editor (with R. L. Mack) of the new definitive work Usability Inspection Methods. Dr. Nielsen's earlier affiliations include Bellcore, the Technical University of Denmark, and the IBM User Interface Institute.