A Modal Specification Approach for On-Demand Medical Systems

The on-demand approach, where systems are assembled from components by lay users, has seen success in the consumer electronics industry. Currently, there is growing demand for on-demand capabilities in medical systems so caregivers can create larger medical systems from smaller medical devices. Unlike consumer electronics, medical systems pose challenges for the on-demand approach due to attributes such as device complexity, device variability and safety requirements. In this paper, we propose a formal specification language for on-demand (medical) systems. Our approach is based on the formalism of Modal I/O Automata, which allows system designers to express complex device requirements and can be used to reason about safety and liveness properties of on-demand medical systems directly from their specifications. We illustrate the applicability of our approach through a case study of a closed-loop patient controlled analgesia system. Disciplines Computer Engineering | Computer Sciences Comments Third International Symposium, FHIES 2013, Macau, China, August 21-23, 2013. http://www.cs.ox.ac.uk/ fhies2013/ This conference paper is available at ScholarlyCommons: http://repository.upenn.edu/cis_papers/756 A Modal Speci cation Approach for On-Demand Medical Systems Andrew L. King, Lu Feng, Oleg Sokolsky, and Insup Lee Department of Computer & Information Science, University of Pennsylvania {kingand,lufeng,sokolsky,lee}@cis.upenn.edu Abstract. The on-demand approach, where systems are assembled from components by lay users, has seen success in the consumer electronics industry. Currently, there is growing demand for on-demand capabilities in medical systems so caregivers can create larger medical systems from smaller medical devices. Unlike consumer electronics, medical systems pose challenges for the on-demand approach due to attributes such as device complexity, device variability and safety requirements. In this paper, we propose a formal speci cation language for on-demand (medical) systems. Our approach is based on the formalism of Modal I/O Automata, which allows system designers to express complex device requirements and can be used to reason about safety and liveness properties of ondemand medical systems directly from their speci cations. We illustrate the applicability of our approach through a case study of a closed-loop patient controlled analgesia system. The on-demand approach, where systems are assembled from components by lay users, has seen success in the consumer electronics industry. Currently, there is growing demand for on-demand capabilities in medical systems so caregivers can create larger medical systems from smaller medical devices. Unlike consumer electronics, medical systems pose challenges for the on-demand approach due to attributes such as device complexity, device variability and safety requirements. In this paper, we propose a formal speci cation language for on-demand (medical) systems. Our approach is based on the formalism of Modal I/O Automata, which allows system designers to express complex device requirements and can be used to reason about safety and liveness properties of ondemand medical systems directly from their speci cations. We illustrate the applicability of our approach through a case study of a closed-loop patient controlled analgesia system.