Usability Views Article Details  home | timeline | recent | popular | e-reports | userati | about this site CHI 2003: Digital ID requires Semi-Permanent Roles for Flexibility (28 May 2003) Article URL: http://www.usabilitynews.com/news/article1087.asp Read 742 more articles from Usability News sorted by date, popularity, or title. Next Article: Commercial Computational Grids: A Road Map This site is a labour of love built by Chris McEvoy