QUALITATIVE COMPARISON OF VIRTUAL AND AUGMENTED PROTOTYPING OF HANDHELD PRODUCTS
The concept of Augmented Prototyping combines Rapid Prototyping techniques to obtain 3D physical objects (e.g. Stereolithography, CNC milling), with Augmented Reality systems. In this article, a comparison is made between the performance of augmented and virtual prototyping. This is done by a design review experiment of a handheld voice recorder. Two prototypes were developed, 1).a screen prototype based on Macromedia Director, 2) an augmented version that employed a video projector to project the screen on a wooden mock-up. In total, 9 subjects participated. Although not statistically sound, this evaluation indicated that the Augmented Prototyping condition yields more feedback, involving aspects of both cognitive and physical ergonomics.