Toward a Unified Method for Digital Twin Development: A Systematic Comparison of Existing Frameworks and Process Models

The rapid growth of interest in Digital Twins has produced a heterogeneous landscape of development methods, frameworks and process models. Existing reviews describe the state of the art in general terms, focus on selected dimensions such as methodologies or Model-Driven Engineering techniques, or propose domain-specific engineering approaches, but no unified view systematically compares these contributions and distils a reference method adaptable across domains. This paper reports the first stage of my research toward such a unified method by systematically comparing existing frameworks and process models and synthesising the result into a coherent reference method. The methodology combines systematic literature review, comparative method analysis and inductive synthesis. The paper presents the current progress, the proposed contribution and open issues.