We recommend using Sparx Systems' Enterprise Architect for users interested in geodatabase design with UML as it offers many advantages over the ArcGIS CASE tools functionality. Enterprise Architect uses Geodatabase XML and the XML import\export functionality for the creation of geodatabases based on a UML design. Because of this, many of the limitations that existed with previous UML modeling solutions and CASE tools are not present in Enterprise Architect.
I have a .diagram model that I'd like to bring into more modern flowchart/diagram software. I'm running 10.2 Diagrammer on an 8yo machine which is literally about to be put into the rubbish skip.
Export options are some raster formats, wmf and possibly XML.
I wasn't able to find any discussion about this online - does anyone know how to reuse this format under other software or current ArcGIS/Pro?