Usability Views Article Details  home | timeline | recent | popular | e-reports | userati | about this site Conditional Interaction: Improving Use Case Notation for User Interface Design (01 Jul 1999) Article URL: http://www.foruse.com/articles/conditional.htm Read 31 more articles from Constantine And Lockwood sorted by date, popularity, or title. Next Article: Don't Get Angry This site is a labour of love built by Chris McEvoy