University of Twente Student Theses


Improving food safety by designing a decentralised traceability architecture in line with stakeholder concerns.

Dijk, R.J. van (2020) Improving food safety by designing a decentralised traceability architecture in line with stakeholder concerns.

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Abstract:In the recent past, society was alarmed by food safety incidents multiple times. These food safety incidents hurt both consumer safety and the value creation of supply chains. One of the underlying problems that contribute to food safety incidents is the lack of traceability in the agri-food supply chain. The purpose of this thesis is to address the lack of traceability, to increase food safety. Concurrent traceability systems do not address stakeholder concerns enough. Moreover, agri-food supply chain actors still perceive barriers in the adoption of traceability systems. In this thesis, an architecture is designed to address these concerns and barriers. This architecture captures traceability data in a decentralised manner. Each supply chain actor captures their traceability data in a pedigree. The pedigree describes the product and actions done to create the product. Actors share the identifiers of the pedigrees to create linked pedigrees. These decentralised linked pedigrees contain the traceability data needed. The architecture uses the Solid ecosystem to realise the exchange and storage of data. Fine-grained access control was realised by emulating Ontology based access control (OBAC). OBAC presents a novel and efficient method to define access control policies based on the structure of the data. The architecture was validated by building a proof of concept, that was exposed to a scenario of the horsemeat scandal. The architecture is shown capable of creating traceability as well as handle uncooperative actors in the case of a food security incident. Furthermore, this research provides a use case for the Solid ecosystem outside of the initial social me- dia context. Next to that, the architecture could be used in other domains that require traceability.
Item Type:Essay (Master)
Faculty:EEMCS: Electrical Engineering, Mathematics and Computer Science
Subject:48 agricultural science, 54 computer science
Programme:Business Information Technology MSc (60025)
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