Contribution to the Specification and Formal Analysis of Cyber-Physical Systems: Application to Industry 4.0
| dc.contributor.author | Ayoub BOUHEROUM | |
| dc.date.accessioned | 2025-08-31T08:07:36Z | |
| dc.date.available | 2025-08-31T08:07:36Z | |
| dc.date.issued | 2025-05-25 | |
| dc.description.abstract | Cyber-Physical Systems (CPS) operate across different spatial and temporal scales and exhibit complex, context-dependent behaviors. The intricate nature of CPS poses significant conceptual and technical challenges, as understanding and managing such systems often exceed individual capacities. To address these challenges, advancements in modeling languages, formal methods, and tools are essential, alongside interdisciplinary collaboration among domain experts, formal methods researchers, and tool developers. This thesis proposes a multi-phase and iterative approach for designing, defining, and analyzing the dynamic and secure behavior of CPS, addressing the gap between theoretical formal methods and their practical application in CPS development. First, adhering to the principles of ISO/IEC/IEEE 42010:2021 for architectural descriptions, we develop a metamodel that facilitates effective communication among stakeholders by employing architectural views and viewpoints. This approach ensures consistency and fosters a shared understanding of the system architecture. Second, to address the limitations of existing formalisms, we introduce CA-BRS, a novel model that combines Bigraphical Reactive Systems (BRS) and Control Agents. CA-BRS distinguishes between the virtual, physical, and cyber levels of CPS, using abstract agents and bigraphs to specify these dimensions. It also incorporates Controlled Reaction Rules to represent both physical and cyber evolutions while considering material constraints. To analyze CPS behavior, we define a formal computational model, the Guided Transition System (GTS), which captures and evaluates emergent properties such as security and safety. IThird, in the design phase of CPS, we establish mapping rules to define the behavioral semantics of CA-BRS using BPMN activity diagrams. This enables the detection of functional inconsistencies, such as deadlocks, infinite loops, or multiple terminations, during model execution. Additionally, we extend CA-BRS to address security requirements, ensuring data confidentiality and integrity by preventing unauthorized access and modifications in distributed CPS. Finally, we demonstrate the practicality of our approach through a case study on Medical-CPS and Industry 4.0 (I4.0-CPS), focusing on network routing (Access Control Lists) and data confidentiality in Electronic Health Records. This highlights the balance between theoretical insights and practical considerations in addressing the physical, cyber, and safety dimensions of CPS. | |
| dc.identifier.uri | http://dspace.univ-khenchela.dz:4000/handle/123456789/9347 | |
| dc.language.iso | en | |
| dc.title | Contribution to the Specification and Formal Analysis of Cyber-Physical Systems: Application to Industry 4.0 | |
| dc.type | Thesis |