A Comparison of the Usability and Effectiveness of Web-Based Delivery of Instructions for Inherently-3D Construction Tasks on Handheld and Desktop Computers

摘要

Since its inception, VRML has held out the promise of initiating a quantum leap in web deliverable content and applications. However, the promise has yet to be realized. In this paper, we consider the problem of the web-based delivery of instructions for inherently-3D construction tasks. We describe a presentation that we built using VRML and discuss a comparative study of the effectiveness of the presentation when viewed using both a traditional desktop environment and also a handheld PDA. The study was both quantitative and qualitative and examined the effect of the user interface and delivery technology on overall task success, user interaction level, and task success for inherently 3D steps.