Synchronize Abstract Persistable Class to ERD
https://www.researchgate.net/publication/314503134_Mapping_Entity_Relationship_Diagrams_in_Class_Diagrams
plantuml file .puml .pu .plantuml, .iuml plantuml for *.pu, *.uml, *.puml, *.iuml or *.plantuml
ArgoUML compressed project file extension .zargo-file
diagram information in a PGML file (with extension .pgml, the model information in an XMI
https://en.wikipedia.org/wiki/List_of_Unified_Modeling_Language_tools
https://docs.huihoo.com/argouml/0.30/user-manual/ch03s04.html
ArgoUML saves the diagram information in a PGML file (with extension .pgml,
the model information in an XMI file (with extension .xmi and information about the project in a file with extension .argo.
See Section 3.4.3.2.2, “
Precision Graphics Markup Language (PGML) ” and Section 3.4.3.3, “XMI” for more about PGML and XMI respectively.
All of these are then zipped to a file with extension .zargo. You can easily extract the .xmi file from the .zargo file using any old generic ZIP application. Give it a try and look into the magic of Argo.