Abstract
Enhancing the usability of tools such as requirements modeling tools requires several cycles of testing and improvement. Since this process is costly, it is usually ignored. In this paper, we present an experimental tool which we have developed with two goals: (i) comparing the usability of a new navigation technique for requirements artifacts called FlexiView with traditional zooming and scrolling, and (ii) developing a platform that enables fast implementation and fair usability comparisons of new navigation techniques while producing generalizable results.