1. Aaron Marcus and Associates, Inc. (AM+A), 1144 65th Street, Suite F, Emeryville, California
2. Fluke Corporation, PO Box 9090, MS-225, Everett, WA
3. User-Interface Software, Design Engineer, Nokia Mobile, R&D Department, P.O.Box 50 (Elektroniikkatie 10), FIN-9057 1, Oulu, Finland
4. Head of HCI and CSCW Lab, Dept. of Info., Processing Science, University of Oulu Linnanmaa, FIN-90570 Oulu, Finland
5. Usability Department, Ericsson Mobile Communications AB, Nya Vattentornet, S-221 83 Lund/Sweden