Toward A Coherent Definition Of The Unified Namespace In Industry 4.0
- The Unified Namespace (UNS) has gained attention in academia and industry as an enabling concept for real-time data integration, event-driven architectures (EDAs), and semantic interoperability in Industry 4.0. However, the concept is marked by divergent interpretations and inconsistent terminology. This paper systematically analyzes existing UNS publications, identifies and classifies recurring characteristics, and proposes a synthesized definition. Establishing a unified definition is essential to provide orientation for the ongoing conceptual discourse. The UNS is defined as a logically centralized, semantically structured integration layer that exposes real-time industrial information across enterprise systems, emphasizing standardized addressing, event publication and subscription, and technology independence to form a consistent basis for research and practice.
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| Author: | Janis SimonsORCiD, Fabian IgelmundORCiD, Luke HagenowORCiD, Jonas Reck, Niklas RadbruchORCiD, Tobias SchröerORCiDGND, Paul Katsioupis |
|---|---|
| DOI: | https://doi.org/10.15488/20991 |
| ISSN: | 2701-6277 |
| Parent Title (English): | Proceedings of the Conference on Production Systems and Logistics CPSL 2026, 14th – 17th April 2026 Instituto Superior de Engenharia do Porto (ISEP) Porto, Portugal |
| Publisher: | publish-Ing |
| Place of publication: | Hannover |
| Editor: | David Herberger, Marco Hübner |
| Document Type: | Conference Proceeding |
| Language: | English |
| Date of Publication (online): | 2026/05/15 |
| Date of first Publication: | 2026/04/16 |
| Release Date: | 2026/05/15 |
| Tag: | 03 Event-Driven Architecture; Industrial IT Architecture; Industry 4.0; Semantic Modelling; Unified Namespace |
| GND Keyword: | Industrie 4.0GND |
| First Page: | 259 |
| Last Page: | 269 |
| Note: | Acknowledgment: This work was conducted within the framework of the research project nexAMo, funded by the Federal Ministry for Economic Affairs and Climate Protection (Bundesministerium für Wirtschaft und Klimaschutz, BMWK). |
| Name of the conference: | Conference on Production Systems and Logistics CPSL 2026 |
| place of the conference: | Porto |
| Date of the conference: | 14.04.2026-17.11.2026 |
| Institute / Department: | FIR e. V. an der RWTH Aachen |
| Produktionsmanagement | |
| Dewey Decimal Classification: | 6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften |
| Licence (German): |  Creative Commons – CC BY 3.0 DE – Namensnennung 3.0 Deutschland |
