Usability Views Article Details  home | timeline | recent | popular | e-reports | userati | books | about  Spotfire (21 Jun 2004) The solution to this problem is to realise that in many cases the users formulate a problem while at the same time try to solve it. As we are dealing with the problem and receive more information we find new ideas for our house or we discover that we don’t actually need 4 rooms. In order to take this into account the dynamic queries continuously update the queries, which are done visually by means of manipulating sliders and scroll bars (see the image in the graphical version of this article), applying the principles of direct manipulation to the database. Article URL: http://www.infovis.net/printMag.php?num=148&lang=2 Read 159 more articles from InfoVis sorted by date, popularity, or title. Next Article: Ten Best Government Intranets     This site is a labour of love built by Chris McEvoy