KDM to UML Model Transformation for Quantum Software Modernization

Thanks to the last engineering advances, quantum computing is gaining an increasing importance in many sectors that will be benefited from its superior computational power. Before achieving all those promising benefits, companies must be able to combine their classical information systems and the new quantum software to operate with the so-called hybrid information systems. This implies, at some point of such a modernization process, that hybrid information systems will have to be (re)designed. UML can be used for defining abstract design models, not only for the classical part as done before, but also for the quantum software in an integrated manner. This paper proposes a model transformation for generating UML models that represents quantum circuits as activity diagrams. Thanks to the usage of UML, these designs are technological-independent which contributes to the modernization of hybrid information systems. The outgoing UML models are compliant with a vast amount of design tools and might be understood by a big community.