| Metaclasses generic | Metaclasses AD | Metaclasses SC | Metaclasses SFC | |
| Process Step | Action | State | Step, Action | |
| Flow | Control Flow | Transition | Transition | |
| Branching | Decision Node | Pseudo State | Choice | |
| Merge Node | Junction | |||
| Parallelization | Join Node | Join | ||
| Fork Node | Fork | |||
| Start | Initial Node | Initial | Step, Action | |
| End | Activity Final Node | Final State | Transition (Jump) | |
| Structure | Activity Partition | Composite State | - | |