Efficient and privacy-enhanced object traceability based on unified and linked EPCIS events.

HighlightsThe graph-oriented approach for standard visibility event/master data is proposed.The approach is better than the event-oriented approach as follows.The approach provides a unified view for both event and master data.The approach alleviates recursive and redundant trace queries.The approach supports resource-level access control as well as event-level one. EPC Information Service (EPCIS) is a de-facto standard for visibility event/master data in supply chains, and the standard is widely known as a key solution to achieve object traceability. Despite its expressive power, this information service is prone to make application developers write queries redundantly and recursively, especially in distributed environments; additionally, it is hard for business partners to protect sensitive business contexts in each object level due to its event-oriented persistence approach. Therefore, we propose a graph-oriented persistence approach for the visibility data to achieve efficient and privacy-enhanced object traceability based on unified and linked EPCIS events.