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Sensemaking in Safety Critical and Complex Situations
FIGURE 15.7 Possible overview display design layout and main content. (F rom Hurlen &
Bye 2020.)
evaluation with e nd-users based on the information needs that were identified so far.
The main content includes absolute and relative position of the vessel, current position setpoint, status of active reference systems, weather conditions, thrusters, power
supply systems and alarms/w arnings. A possible layout for a DP overview display is
shown in F igure 15.7.
Based on the lessons learned from overview display design in the nuclear and
petroleum domain, mock-ups were made to illustrate how the display could behave
during different circumstances. Key design objectives in this work were to support
“ at - a-glance” use, creating information graphics that might give DPOs early warnings and thus extended time to handle disturbances before they reach a critical stage,
and highlighting automation m ode-related information for which our interviews and
incident analysis also identified some challenges.
Please remember that this design is meant to be combined with flexible elements
needed for necessary HMI adaption to changing circumstances. The design mock-ups
are shown in Figures 15. 8–15.10.
RESULTS FROM EVALUATION WITH END-USERS
To assess the feasibility of the overview display design idea, the mock-ups described
above were presented and discussed with four experienced DPOs. They each had
3 –9 years of operative DPO experience from a variety of vessels and operations,
including cargo, construction and production vessels (r igs). Two were also experienced DP instructors. The DPOs were interviewed individually on video. The interviews were performed in a s emi-structured manner and organized around the four
main topics presented below. A possible weakness with this method is that interview
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