18th Edition of the Journal of Innovation Rapid Advancements in Digital Transformation | Page 73

Digital Transformation in Practice : Learning from IIC Deployments
Technology : The VAT test drive involves a wide range of advanced security , wireless communication , and distributed computing technologies , including , but not limited to , Arm TrustZone-enabled low-power microcontrollers , low-power wide area network ( i . e . NB-IoT / LTE- M ), blockchain , etc . These state-of-the-art technologies are essential for organizations protecting their digital assets securely and cost-effectively . By evaluating the benefits and limitations of the new technologies , organizations are able to gradually integrate them into their existing systems and workflows for realizing their digital transformation journey smoothly .
Trustworthiness : The security-by-design methodology was extensively applied to the system design of the VAT test drive . Multiple security technologies ( e . g ., Arm TrustZone , hardware-based root-of-trust , transportation layer security ( TLS ), blockchain ) are employed to ensure trustworthiness of data collection , transmission , and processing in asset tracking applications , which removes barriers for organizations sharing data and conducting collaborative business .

7.3 UNDERPINNING TECHNOLOGY

Data center / edge : The secure edge devices in the VAT test drive are responsible for collecting real-time information of the attached assets in the healthcare network , including location , temperature , humidity , movement , handling , etc . The collected information can be sent to the data center or other decentralized storage , as specified by users .
Hyper-connectivity : The secure edge devices used in the VAT test drive are low-power cellular IoT devices that connect to the backend service via NB-IoT / LTE-M and support worldwide operations with IoT SIM cards .
Data security : The secure edge devices in the VAT test drive use an Arm TrustZone-enabled microcontroller coupled with a security sub-system to realize strong software and data integrity protection on the devices . IoTeX blockchain is employed to further ensure data immutability .
Digital twin : The trusted data collected by the secure edge devices reflects the real-time status of the attached assets in the healthcare network , which is processed by the smart contract on the blockchain to enforce service level agreements among healthcare network stakeholders .
Distributed ledger : The blockchain platform serves as the single source of truth for documenting business interactions among the healthcare network stakeholders , which simplifies trust establishment and facilitates collaboration of multiple organizations .
Data sharing : The blockchain enables healthcare network stakeholders to reach agreement regarding asset status in the supply chain . Besides the supply-chain data shared on the blockchain , additional information can also be shared between stakeholders through a decentralized identifier ( DID ) -based data authorization mechanism .
IIoT : The VAT test drive demonstrates how to build a trusted and transparent asset tracking solution for healthcare networks by combining secure edge devices , consortium blockchain and
66 November 2021