Usability Testing & Analysis of Advanced Multimodal Watchstation Functions
Usability testing is a well known method for obtaining user feedback during the design process, Dumas & Redish (1993), Gomoll (1996), Halgren & Smilowitz (1997), Treu (1994). Testing has been a continuous aspect of the Multimodal Watchstation (MMWS) conceptual design process with different usability testing techniques having been used through various portions of the design. Early cognitive walkthrough evaluation helped to focus design efforts toward complex or contusing portions of the interface. Lo-fidelity prototype design and testing then focused on improving these portions on an individual basis. Once satisfied, hi-fidelity prototype testing was used to determine how time and interaction workload affected performance. This paper presents the various usability techniques used throughout the design process, with some key results from each technique, including a discussion of project resource investment for various design prototypes. Results indicate that utilizing various usability testing techniques provides both time and cost effective answers throughout all stages of conceptual design.