Graphical notations, narratives and persuasion: a Pliant Systems approach to Hypertext Tool Design
Proceedings of the thirteenth ACM conference on Hypertext and hypermedia
The HEAT/ACT preliminary safety case: a case study in the use of goal structuring notation
SCS '04 Proceedings of the 9th Australian workshop on Safety critical systems and software - Volume 47
Demonstration of safety in healthcare organisations
SAFECOMP'06 Proceedings of the 25th international conference on Computer Safety, Reliability, and Security
Applying Safety Goals to a New Intensive Care Workstation System
SAFECOMP '08 Proceedings of the 27th international conference on Computer Safety, Reliability, and Security
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In virtually all safety-critical industries the operators of systems have to demonstrate a systematic and thorough consideration of safety. This is increasingly being done by demonstrating that certain goals have been achieved, rather than by simply following prescriptive standards. Such goal-based safety cases could be a valuable tool for reasoning about safety in healthcare organisations, such as hospitals. System-wide safety cases are very complex, and a reasonable approach is to break down the safety argument into sub-system safety cases. In this paper we outline the development of a goal-based top-level argument for demonstrating the safety of a particular class of medical devices (medical beds). We review relevant standards both from healthcare and from other industries, and illustrate how these can inform the development of an appropriate safety argument. Finally, we discuss opportunities and challenges for the development and use of goal-based safety cases in healthcare.