https://sparxsystems.com/resources/tutorials/uml2/sequence-diagram.html
uml inspired hierarchical state machine
ontomde-uml2-kbjava is a library to generate tests data as java code and java junit from Protégé 2000 data project generated with ontomde-uml2-kb. ontomde-uml2-kbjava should be used through ontomde-java-frontend command line utility. == FEATURES/PROBLEMS: * generator assumes JPA persistence is used. == SYNOPSIS: