Yet a small overview window means image fidelity is lost. Also, the physical separation of overview from the viewport sometimes causes people to neglect the overview. However, visual interference is now present between the two layers. Given that this is a strange way of working, we ran an exploratory study to see whether people could comprehend and successfully use such a system. T-connectors, right angles, end stubs and 3 different lengths of straight pipes.
Welded assemblies act as a single unit.
All overviews show all pipe pieces and where they are located, and the overall appearance of the pipeline as it is being constructed. However, welding is allowed only on the full-sized pieces visible in the viewport layer, which simulates conditions where certain work activities need to be performed in a high fidelity view. A sixth schematic overview showed each piece as a stick figure. Representations Method Eight people participated in this usability study. Using a blueprint as a guide, a user assembled a pipeline.