Metrology Cloud: WP4 „Data-based Metrological Support Services“ Physikalisch-Technische Bundesanstalt Dr. Marko Esche National Metrology Institute Working Group 8.51 Metrological Software Abbestraße 2 – 12 10587 Berlin, Germany phone: +49 30 3481-7975 www.ptb.de e-mail: [email protected] Dr.-Ing. Marko Esche