Towards Assurance Cases for Resilient Control Systems
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assurance case
cyber-physical systems
resilient control systems
Computer Engineering
Computer Sciences
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Abstract
The paper studies the problem of constructing assurance cases for embedded control systems developed using a model-based approach. Assurance cases aim to provide a convincing argument that the system delivers certain guarantees, based on the evidence obtained during the design and evaluation of the system. We suggest an argument strategy centered around properties of models used in the development and properties of tools that manipulate these models. The paper presents the case study of a resilient speed estimator for an autonomous ground vehicle and takes the reader through a detailed assurance case arguing that the estimator computes speed estimates with bounded error.
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Proceedings of the 2nd International Conference on Cyber-Physical Systems, Networks, and Applications (CPSNA 2014)(http://www.cpsna.org/cpsna-2014/), Hong Kong, China August 25-26, 2014 (Invited paper).