Clifford Brown, Daniel Hutzschenreuter, Julia Neumann
AN INTRODUCTION TO LINKED DATA AND THE SEMANTIC WEB

For a sustainable transformation of processes and services from metrology into a digital age, data needs to become more comprehensible to machines. Linked Data and tools from the Semantic Web are promising developments helping to reach this goal. We give an introduction to relevant concepts and tools that metrologists are being increasingly confronted with in the scope of digital transformation.

Muhammed-Ali Demir, Moritz Jordan, Thomas Krah, Shanna Schönhals, Siegfried Hackel, Frank Härtig, Thorsten Schrader, Jan Loewe, Lutz Doering, Benjamin Gloger, Justin Jagieniak, Gamze Söylev-Öktem
A HUMAN READABLE FORM OF THE DCC

One of the benefits of the Digital Calibration Certificate (DCC, [1] and [2]) as shown by PTB is to have flexible ways to transform the resulting DCC document since it is a digital document. In order to better visualise the content for human beings, or for a transitional period to print an analogue copy of the DCC XML [3] document with sign and seal, a feature for transforming the DCC to a human readable form is needed. We will call this form human readable (HR) (see Fig. 1), and it is an optional part of the DCC. This paper will show how to generate the human readable form of the DCC by using the eXtensible Stylesheet Language (XSLT [4]). In section 1 we will give a short review of the DCC schema (XSD) and describe the structure of an exemplary DCC (XML). In section 2 we will suggest how to generate the human readable of a DCC document. First, we will discuss for which purpose the human readable can be used. Then, we show how the human readable can be generated by using XSLT. Finally, we will give an outlook on future steps and topics to be solved.

Shanna Schönhals, Lutz Doering, Benjamin Gloger, Siegfried Hackel, Frank Härtig, Daniel Hutzschenreuter, Justin Jagieniak, Thomas Krah, Jan Loewe, Thorsten Schrader, Gamze Söylev Öktem
RECENT ADVANCES OF THE LONG-TERM AVAILABLE DCC SCHEMA VERSION 3

The aim of this publication is to provide an overview of the recent advances of the XML schema for digital calibration certificates. The motivation and benefits of digital calibration certificates is explained and the basic requirements to which the DCC complies are stated in Section 1. A representative selection of changes is presented and explained in Section 2; and finally, conclusions are drawn, and an outlook on further work is given in Section 3.

William Dinis Camara, Steven Choquette, Katya Delak, Robert Hanisch, Benjamin Long, Melissa Phillips, Jared M. Ragland, Catherine Rimmer
THE DIGITAL NIST: CHALLENGES AND OPPORTUNITIES IN THE DIGITAL TRANSFORMATION OF NIST’S REFERENCE MATERIALS

Early in 2022 NIST embarked on a pilot project to produce digital calibration reports and digital certificates of analysis for reference materials. The goal of the project is to produce a few examples of digital reports and certificates for the purpose of assessing the scope and challenges of digital transformation in those particular measurement services. This presentation is focused on the Reference Material Certificate effort of the pilot project. Our aims for this part of the pilot project are to generate a digital Reference Material Certificate from certification data, descriptive information about the material, and other data and metadata as needed, to generate a human-readable report from the digital Reference Material Certificate; and to hold a workshop to gather stakeholder feedback. The challenges for NIST include the diverse and complex information presently contained in NIST certificates, converting values to non-SI units to match the needs of stakeholders, and the updates to NIST Reference Material Certificates to allow for machine generation. Other practical challenges include the wide variety of Reference Materials offered by NIST, as well as the needs of internal and external stakeholders. This presentation will report on the progress of the NIST effort and discuss some of the challenges and solutions to producing Digital Reference Material Certificates.

Cristian Zet, Gabriel Dumitriu, Cristian Foşalău, Gabriel Constantin Sârbu
AUTOMATED DCC GENERATION USING LABVIEW AND BLOCKCHAIN TECHNOLOGY

Digital technologies are used in instrumentation and measurements since many years. The use of microprocessors in measuring instruments became a common practice, bringing the advantage of extended information processing at the instrument level, digital interface and remote control. The instrument can be calibrated and verified within an automated system which can carry all the process without the operator interference and to generate in the end the calibration certificate. The paper presents the possibility of joining the calibration of an instrument with a reference source using an automated test system with the Blockchain technology for creating a Digital Calibration Certificate (DCC). As benefits there are the traceability of the DCC, impossibility of being altered and the full history can be maintained in its digital wallet.