טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentNir-Ducach Ravit
SubjectDesign of Integrated Information Display for Complex
Medical Processes Control
DepartmentDepartment of Industrial Engineering and Management
Supervisor Professor Alan Kirschenbaum
Full Thesis text - in Hebrew Full thesis text - Hebrew Version


Abstract

This paper establishes the basis for a future research on computerized displays for process control systems. It is focused on computer display for medical treatment control in orthopedic wards. The future research hopes on one hand to improve both process understanding and better decision making, thus is may have potential impact on both clinical outcomes and costs in the healthcare. The goal of the future research is to examine whether the use of computerized display based on ecological interface design (EID), can achieve better situation awareness of controlled processes. For that reason, two alternative comparable computerized displays were developed: an EID based computerized display and a more conservative display. We recommend comparing these two alternatives using the following indices: users' performances, users' satisfactions and the level of situation awareness achieved by the display.

This paper presents a theoretical background, suggests a future research model and suggests a method for conducting such a research.

These are the main conclusions that were implemented in the design of the orthopedic medical process control computerized display:

·        The ecological interface design (EID) method is an efficient and effective tool for analyzing and modeling the medical domain. Display that is based on precise mapping of the domain is expected to support the user's tasks during both usual and unexpected situations. Additionally, the use of the EID method is expected to reduce the cognitive load on the user. The reason for that is its correlation with the human way of problem solving that is based on means-goal connections.

·        Presentation of high hierarchy level information supports the user's ability to properly comprehend the information and process it efficiently. Information presentation at these levels requires the use of sophisticated aggregative displays that are able to provide the user helpful information without overload him.

·        It is necessary to use the PCP theory principles that emphasize the need for spatial proximity of connected elements in the computerized display. The spatial proximity helps to emphasize the connections between the different variables, and becomes a tool for developing interfaces that represent the controlled process area correctly. Highlighting the different connections helps the user and reduces cognitive resources that can be allocated to other tasks.