Senior design project for students from Wright State University evaluated the use of trend arrows as a substitute for trend plots. Different angles for the trend arrows were evaluated for both stable and unstable operating conditions. The vector arrows were more effective than just digital value, but less than trend plots. They worked best for long time periods when unstable conditions exist. Inexplicably, subjects focused on variable located on the right more than those on the left.
Under what conditions do vector arrows improve ability to detect change to variables?
Trends can consume a large amount of display real estate. Can a display component that consumes far less real estate provide sufficient information for operators to detect process changes?
Presentation