Gregorio, J; Duncan, P (2023) An Overview of Digital Thread Testing and Software Interoperability for Digital Supply Chains. NPL Report. MS 51

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Abstract

This paper acknowledges the widely accepted definition of a digital thread as a traceable flow of data and information, pertaining to the whole life cycle of a product, which spans across several network boundaries owned by different organisations. The use of model-centric systems, which store data and information in queryable models rather than conventional digital documents, is widely recognised as a more efficient and reliable approach for implementing and deploying a digital thread. However, the development and deployment of such systems need significantly more resources compared to conventional document-based solutions. Although these solutions have the potential to construct resilient digital threads, more investment in infrastructure is necessary to allow the seamless transfer of data and metadata across network boundaries, while ensuring the preservation of the information when being shared.

This research investigates the use of hashing techniques for file content verification. It examines how this method can help maintain the original design intention of technical data packs when shared amongst stakeholders over different network boundaries. In the context of this report, network boundaries are defined as the limits of a digital network owned by different organisations, delineating the extent of a network’s reach and control (defined by technical constraints, security protocols, and organisational policies). Furthermore, the notion of software interoperability is also regarded as crucial for the establishment of a taxonomical vocabulary aimed at facilitating communication among various stakeholders.

The combined use of these two concepts offers a robust framework for the examination and authentication of data transmission pathways within the digital testbed offered by the Connected MBEE Testbed. This framework aims to accurately simulate the real-world context of supply chain integration involving multiple organisations. The aforementioned objective is accomplished by employing the file content verification technique, which enables a more efficient evaluation of the pathways through which data is transferred. Additionally, the examination of a software interoperability matrix showcases its potential for integration with a Digital Minimum Standards assessment to aid with the classification of third-party suppliers based on their capabilities, facilitating their integration with supply chains.

In summary, this report outlines two primary characteristics that facilitate the establishment of a document-centric digital thread throughout numerous organisations: data transfer and software interoperability. Additionally, it offers guidance on the creation of a tool that facilitates the active examination and evaluation of data transfers, as well as the preservation of design intent. Furthermore, it establishes the foundation for a methodology to address the problem of software interoperability within the framework of supplier classification.

Item Type:	Report/Guide (NPL Report)
NPL Report No.:	MS 51
Subjects:	Mathematics and Scientific Computing > Modelling
Divisions:	Data Science
Identification number/DOI:	10.47120/npl.MS51
Last Modified:	22 Jan 2024 09:00
URI:	http://eprintspublications.npl.co.uk/id/eprint/9904

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