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- Title
Dependability enhancing mechanisms for integrated clinical environments.
- Authors
Zhao, Wenbing; Yang, Mary
- Abstract
In this article, we present a set of lightweight mechanisms to enhance the dependability of a safety-critical real-time distributed system referred to as an integrated clinical environment (ICE). In an ICE, medical devices are interconnected and work together with the help of a supervisory computer system to enhance patient safety during clinical operations. Inevitably, there are strong dependability requirements on the ICE. We introduce a set of mechanisms that essentially make the supervisor component a trusted computing base, which can withstand common hardware failures and malicious attacks. The mechanisms rely on the replication of the supervisor component and employ only one input-exchange phase into the critical path of the operation of the ICE. Our analysis shows that the runtime latency overhead is much lower than that of traditional approaches.
- Subjects
MEDICAL equipment reliability; RELIABILITY in engineering; SAFETY factor in engineering; PATIENT safety; RUN time systems (Computer science); EQUIPMENT &; supplies
- Publication
Journal of Supercomputing, 2017, Vol 73, Issue 10, p4207
- ISSN
0920-8542
- Publication type
Article
- DOI
10.1007/s11227-017-2003-0