Discount usability engineering applied to an interface for Web-based medical knowledge resources

recruited.ofthe resourcewerepracticingphysicians at KPNW,a physician list from KPNW was collected, and One ofthe methods employed by discount usabilityrefined to working physicians within a 45 minute engineering is direct usertesting whereweobservedradius oftravel fromPortland. Thelist, originally in usersduringa 30minute test.