Specifying how objects enter and flow through a process flow
In System Architect, the object (or token) used for simulation in BPMN diagrams is the same object definition used in the UML modeling portion of the tool; thus the UML choice must be turned on for the encyclopedia for objects to be available.
1 Select Tools > Customize Method Support > Encyclopedia Configuration.
2 Select both of these properties:
UML
Simulation (under Business Modeling).
3 Reopen the encyclopedia for the changes to take effect.