An evaluation of graphical context as a means for ameliorating the effects of registration error.

An ongoing research problem in Augmented Reality (AR) is to improve tracking and display technology in order to minimize registration errors. However, perfect registration is not always necessary for users to understand the intent of an augmentation. This paper describes the results of an experiment to evaluate the effects of registration error in a Lego block placement task and the effectiveness of graphical context at ameliorating these effects.

Nursing documentation usage analysis.

This project investigated the use of electronic patient documentation in the work context of VA nurses, guided by cognitive work analysis methodology. Prominent themes in nursing workflow and documentation usage identifed in previous research were summarized and presented in detail to a focus group of practicing nurses. The group validated a need for integrated access to order, prescription and document information.