A Design Pattern Language to Assist the Design of Alarm Visualizations for Operating Control Systems
Not all controlled process conditions require the same degree of response or attention by a human operator. Accordingly, the human operator would like accessing, manipulating and navigating alarm displays in order to access to the most relevant alarm information for the current status of the controlled process.
The human operator needs to access, manipulate and navigate alarm displays to easily access to the most relevant alarm information for the current status of the controlled process.
Use direct manipulation to allow operators to provide inputs to an alarm display, receive information from it, and manage the tasks associated with access and control of alarm information. Input is usually provided by using a pointing device to manipulate the graphical object, causing the computer operations to be performed on the object or information it represents. Feedback is represented by a change in the graphic object.
Having real-world metaphors for objects and actions can make it easier for a user to learn and use an interface (some might say that the interface is more natural or intuitive), and rapid, incremental feedback allows a user to make fewer errors and complete tasks in less time, because they can see the results of an action before completing the action, thus evaluating the output and compensating for mistakes. (Card, S. K., Mackinlay, J. D., & Shneiderman, B. (1999). Readings in information visualization: Using vision to think Morgan Kaufmann Pub. )