DIN SPEC 91383:2018-09

This DIN SPEC has been drawn up by a temporary body ('Workshop') in accordance with the PAS procedure. This DIN SPEC has been developed and approved by the authors named in the Foreword. This DIN SPEC extends and states the syntax and semantics of the ISO 14306:2017 file format more precisely to: - Enable lightweight 3D Visualization and exact geometric representation - Secure CAD Interoperability, performance and consistency in the communication across internal business domains and company borders - Safeguard long-term data retention and long-term usage of standard. It comprises the latest enhancement requests gathered by the prostep ivip / VDA JT Workflow Forum and the prostep ivip / VDA JT Implementor Forum. It covers the over 32 JT use cases specified in the prostep ivip Recommendation PSI 14-2:2015 edition 1, Part 2. It is downward compatible to ISO 14306:2017 and addresses the related ISO/TC 184/SC 4 enhancement proposals. At its core, the JT format is a scene graph with Computer Aided Design (CAD) specific node and attributes support.