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This work was funded by the Multiannual Agreement with the Universidad Politecnica de Madrid in the Excellence Programme for University Teaching Staff in the context of the V PRICIT (Regional Programme of Research and Technological Innovation).

Analysis of institutional authors

González-Gerpe, SalvadorCorresponding AuthorPoveda-Villalon, MariaAuthorGarcía-Castro, RaúlAuthor

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Article

DTAG: A Methodology for Aggregating Digital Twins Using the WoTDT Ontology

Publicated to:Applied Sciences-Basel. 14 (13): 5960- - 2024-07-01 14(13), DOI: 10.3390/app14135960

Authors: Gonzalez-Gerpe, Salvador; Poveda-Villalon, Maria; Garcia-Castro, Raul

Affiliations

Univ Politecn Madrid, Ontol Engn Grp, Madrid 28660, Spain - Author

Abstract

The advancement of digital twins (DTws) has been instrumental in various scientific and industrial domains, facilitating real-time monitoring, analysis, and optimisation of complex systems. However, it remains difficult to describe precisely the architectural models and their characteristics of DTws and the aggregation of lower-level DTws to higher-level DTws. This article introduces two contributions with the goal of addressing challenges in describing DTws architectures and aggregating DTws. Firstly, it presents the development of "WoTDT" (WoT digital twin) ontology, an extension of the W3C Web of Things descriptions ontology, designed to semantically describe the five-dimensional model architecture of DTws. This ontology enhances data interoperability and accessibility across dimensions, promoting a deeper understanding of DTws. Secondly, it introduces the "DTAG" (digital twin aggregation) methodology for aggregating multiple DTws into an unified DTw aggregate (DTwA). This methodology considers whether the DTws contain semantics or not and employs the WoTDT ontology to conceptualise the architecture and features of the resulting DTwA. Finally, an example of WoTDT ontology together with the DTAG methodology is shown in the context of the European H2020 construction-related project COGITO.

Keywords

AggregatioAggregationDigital twinsMethodologyOntologyWeb of things

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Applied Sciences-Basel due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2024 there are still no calculated indicators, but in 2023, it was in position 258/439, thus managing to position itself as a Q1 (Primer Cuartil), in the category Materials Science, Multidisciplinary.

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-06-15:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 14 (PlumX).

With a more dissemination-oriented intent and targeting more general audiences, we can observe other more global scores such as:

    It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

    • The work has been submitted to a journal whose editorial policy allows open Open Access publication.

    Leadership analysis of institutional authors

    There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (GONZALEZ GERPE, SALVADOR) and Last Author (GARCIA CASTRO, RAUL).

    the author responsible for correspondence tasks has been GONZALEZ GERPE, SALVADOR.