Visual Sensitivity of Dynamic Graphical Objects

Abstract

Advanced display design, such as Ecological Interface Design (EID), makes extensive use of complex graphical objects. Research has shown that by following EID methodologies, operators have better performance with the EID displays (Pawlak and Vicente, 1996). However, past research does not consider visual aspects of the graphical objects used in EID. Of particular interest is how different design decisions of graphical objects affect the performance of the objects used within that design. We examined the visual sensitivity of dynamic graphical objects, examining which features make certain graphical objects visually superior for certain tasks. It was found that for simple dynamic objects, a line changing in angle was the most noticeable emergent feature. For complex graphical objects, those that mimic a “bull's eye” should be used for target-indicator displays, “solid objects” should be used for comparison meters, and changes in shape sizes should be used in trend meters. These findings provide guidance for designers of dynamic advanced graphical displays.