With the »Professional Certification« program (»Foundation« and »Practitioner«), buildingSMART offers an internationally comparable quality standard for the certification of openBIM knowledge. BIMcert provides the training for this certification. The »Practitioner« training is covered for openBIM Coordination and openBIM Management. This book is dedicated to the functional training of openBIM and describes all subject areas for these levels. It starts with an overview of digitalisation basics and the most important terms of openBIM. This forms the basis for the »Foundation« training. Those interested in theory as well as BIM practitioners will then receive a compact and indepth insight of openBIM standardisation, IFC, MVD, BCF, CDE, LOIN, IDS, bSDD, and UCM. Armed with this knowledge, BIM practitioners will find the necessary functional knowledge in the chapter »BIM project implementation« in order to then be trained at »Practitioner« level in openBIM Coordination and openBIM Management.