Multi-Fidelity Digital Twins: a Means for Better Cyber-Physical Systems Testing?

TL;DR

This paper proposes a novel approach using multi-fidelity digital twins to improve the testing processes of cyber-physical systems, addressing the challenges of simulation-based testing in complex, real-world applications.

Contribution

It introduces a new method leveraging multi-fidelity digital twins to enhance CPS testing, filling gaps in current simulation-based testing techniques.

Findings

Conceptual framework for multi-fidelity digital twins

Open questions and potential benefits outlined

Motivational examples provided

Abstract

Cyber-Physical Systems (CPSs) combine software and physical components. These systems are widely applied in society within many domains, including the automotive, aerospace, railway, etc. Testing these systems is extremely challenging, therefore, it has attracted significant attention from the research community. A driving CPS testing technique in industry is simulation-based testing. However, this poses significant challenges. In this new-idea paper we present a novel approach to enhance the testing processes of CPSs. This novel approach is motivated with examples and open questions.