6.2-6 Processing Information to Match User Requirements

The information associated with selectable items of the group-view display item should be processed to match each user's task requirements when this processing would reduce distracting and unnecessary information and enhance operator performance.

Additional Information:
One approach to supporting personnel in the retrieval of information is to have the group-view display indicate that important information is available regarding a particular topic. This may be indicated by displaying an item that individuals can select to cause the information to be presented on an individual-view display. However, the selectable item may be associated with a large amount of detailed information that may not be relevant to each individual crew member. The general principle of task compatibility states that the HSI should meet the needs and requirements of the users' tasks. Thus, the information associated with this item may be processed to better match the information to the particular user's current task requirements and eliminate information that may be unnecessary or distracting. The processing of this information may be based on such factors as operator characteristics and plant status. These processing methods may be used separately or in combination. For example, no processing may be used for those selectable items that are associated with little supporting information, processing based on user characteristics may be used for those selectable items that are associated with large amounts of information of differing importance to individual operators, and processing based on plant status may be used when the plant enters certain configurations (e.g., after a plant trip). Another consideration is the manner in which information is made available to the operators. The alarm message processing techniques described in Section 4.1.2 and in NUREG/CR-6105, may also be applied to the retrieval of information associated via group-view displays. Finally, consideration should be given to the degree to which the operator may control or override the processing method and the availability of the information (e.g., should an operator be able to access all associated information, if desired). Use of this capability should not impose demands on the operator that detract from the operator's primary task of controlling the plant.