A Model-Based Approach to Support Validation of Medical Cyber-Physical Systems

Sensors

Lenardo C. Silva¹  Hyggo O. Almeida²  Angelo Perkusich²  Mirko Perkusich² 

[1] Embedded Systems and Pervasive Computing Laboratory, Federal University of Campina Grande, 882 Aprígio Veloso Street, Universitário, Campina Grande 58429-900, Brazil;

关键词: medical cyber-physical systems;    early validation;    simulation;    formal methods;    model-based development;    clinical scenarios;    medical devices;    patient model;   

DOI  :  10.3390/s151127625

来源: mdpi

【 摘 要 】

Medical Cyber-Physical Systems (MCPS) are context-aware, life-critical systems with patient safety as the main concern, demanding rigorous processes for validation to guarantee user requirement compliance and specification-oriented correctness. In this article, we propose a model-based approach for early validation of MCPS, focusing on promoting reusability and productivity. It enables system developers to build MCPS formal models based on a library of patient and medical device models, and simulate the MCPS to identify undesirable behaviors at design time. Our approach has been applied to three different clinical scenarios to evaluate its reusability potential for different contexts. We have also validated our approach through an empirical evaluation with developers to assess productivity and reusability. Finally, our models have been formally verified considering functional and safety requirements and model coverage.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.