The recruitment area map of French hospitals and clinics was first designed using Flash 5. It underwent major changes with the release of Flash 6 (aka Flash MX). Now, postal code backgrounds are drawn dynamically when the map is loaded, by querying an Access or mySql table of coordinates. This flexibility answered the need users had of being able to zoom the recruitment area of a selected facility or focus on the destination of the population of a particular area instead. The reasons why patients are sent to a particular hospital are based on complex factors that always go beyond administrative boundaries – i.e. departments or regions. Easy navigation from one region to another therefore had to be made possible, as well as analysing the situation near administrative borders.