Formally Verified Self-adaptation of an Incubator Digital Twin

Gomes, Cláudio; Woodcock, Jim

doi:10.1007/978-3-031-19762-8_7

Cited by 5 publications

(1 citation statement)

References 56 publications

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“…The most common approaches for the verification of the safety and security requirements of Digital Twin are based on formal methods, such as, logic, state machine, and process algebra [ 16 , 17 ]. Among these, as stated in the abstract, the approach based on process algebra is most promising: each IoT device can be considered as a process Twin with the properties of real-time, periodicity, control, interactivity, mobility, distribution, etc.…”

Section: Introductionmentioning

confidence: 99%

Process Algebraic Approach for Probabilistic Verification of Safety and Security Requirements of Smart IoT (Internet of Things) Systems in Digital Twin

Song,

Lee,

Karagiannis

et al. 2024

Sensors

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Process algebra can be considered one of the most practical formal methods for modeling Smart IoT Systems in Digital Twin, since each IoT device in the systems can be considered as a process. Further, some of the algebras are applied to predict the behavior of the systems. For example, PALOMA (Process Algebra for Located Markovian Agents) and PACSR (Probabilistic Algebra of Communicating Shared Resources) process algebras are designed to predict the behavior of IoT Systems with probability on choice operations. However, there is a lack of analytical methods in the algebras to predict the nondeterministic behavior of the systems. Further, there is no control mechanism to handle undesirable nondeterministic behavior of the systems. In order to overcome these limitations, this paper proposes a new process algebra, called dTP-Calculus, which can be used (1) to specify the nondeterministic behavior of the systems with static probability, (2) verify the safety and security requirements of the nondeterministic behavior with probability requirements, and (3) control undesirable nondeterministic behavior with dynamic probability. To demonstrate the feasibility and practicality of the approach, the SAVE (Specification, Analysis, Verification, Evaluation) tool has been developed on the ADOxx Meta-Modeling Platform and applied to a SEMS (Smart Emergency Medical Service) example. In addition, a miniature digital twin system for the SEMS example was constructed and applied to the SAVE tool as a proof of concept for Digital Twin. It shows that the approach with dTP-Calculus on the tool can be very efficient and effective for Smart IoT Systems in Digital Twin.

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Section: Introductionmentioning

confidence: 99%