טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentSpringer Adva
SubjectThe influence of an Ecological Situation Display on
Situation Awareness and Performance in Emergency
Medical Dispatch During Mass casualty
Incident
DepartmentDepartment of Industrial Engineering and Management
Supervisor Professor Avi Parush


Abstract

Ecological interface design (EID) is a theoretical framework for designing a human- computer interface for complex systems. It supports operators in their work and especially during unanticipated events. Previous research found that ecological displays improve effectiveness, performances, and situation awareness (SA). The current study tested the influence of an ecological display in the context of mass casualty incident (MCI) management at the emergency medical dispatch (EMD). The Magen David Adom (MDA) dispatch and the shift officer management, were considered as a case study for MCI management. The goal of the current study was to understand how integrated ecological situation displays can influence the SA and decision making during the work in EMD. The main objective was to understand how visualizations of higher abstraction levels of the situation’s ecology would influence the comprehension and prediction levels of SA. To this end, a situation display was designed and tested. The display design process consisted of user research and task analyses followed by conceptual and detailed design. In the empirical test of the display, nineteen participants monitored four MCI scenarios using four different displays: (1) control display (2) display with an ecological component supporting the vehicles allocation (3) display with an ecological component supporting the evacuation and (4) a display with all the components. The results show that participants had a higher SA when using the full and allocation displays compared to the control and evacuation displays. In addition, the participants had better performances when using the full display compared to the control display. These findings support the hypotheses that ecological components within situation display will increase SA and support the well-known connection between ecological displays and performances. Practically, this study designed and validated an ecological situation display to supports MCI management in MDA’s EMD.