Abstract
This paper describes a haptic enabled UML CASE tool that enables software engineering developers to physically manipulate and touch the UML modeling elements and feel the force feedback. We propose an architecture and a software design for the tool. The current implementation of the tool uses the Omni Phantom device, a quite common haptic interface among the haptic research community. The CASE tool, from a user perspective, consists of three parts: a drawing area, a palette, and a tool bar. Our preliminary usability study demonstrated the potential of adding the haptic modality to UML development tools.