Development Lifecycle and Method/Procedures for developing good Graphical User Interface for Software in Medical Equipment.
Master thesis
Permanent lenke
http://hdl.handle.net/11250/250185Utgivelsesdato
2007Metadata
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Sammendrag
The focus in this thesis is on the design process for graphical user interface for medical equipment. Guidelines for good Graphical User Interface have been developed for the purpose of performing a usability evaluation of the SimMan software. By performing this usability evaluation it is proven that usability and safety problems can be found effectively and inexpensive. The Human factor design process has been modified to include parallel design, and to take greater use of usability evaluation in the design process. The usability guidelines are developed through a thorough literature study. The ten general principles for usability design developed by Jacob Nielsen made the fundament for the guidelines. Supplemented by Shneiderman and Plaissants eight golden rules of interface design, Tognazzinis first principles of interaction design, Normans rules based on human errors and Levinsons 60 guidelines for safe HMI design . Although the guidelines developed might look useful, the guidelines should always be updated according to the system being developed. The usability evaluation of the SimMan GUI, uncovered some problems. Probably the most important problem according to safety is not having possibility to undo treatment events registered by the instructor. On the other hand, an important strength in the software is the use of medical terms instead of system language , which could be difficult for the users to understand. The modification of the human factor design process is a result of the parallel design principle, which is presented by Nielsen and the experience gained in the usability evaluation.