Improve ergonomics and user productivity with Flex Simulation, Harness Installation and Harness Flattening enhancements Harness analysis, and filtering and sorting capabilities in the device list have been improved to enhance ergonomics. In addition, knowledge parameters on bundle segments in harness flattening can be synchronized. These enhancements, among others, are particularly beneficial to the aeronautical and automotive industries. Interfaces NEW STEP product for advanced functionalities CATIA Extended STEP Interface enables long-term archiving with full validation properties and nested assemblies. It also makes it possible to manage very large assembly structures thru STEP thanks to nested assemblies support. This feature especially benefits the aeronautical and automotive industries.