| Name | Description |
|---|---|
| Create new entities | |
| Remove entities from the system | |
| Store entities waiting for resources | |
| Seize resources to process an entity | |
| Processing delay | |
| Release resources after processing an entity | |
| Divide the flow of entities | |
| Condition to divide the flow of entities | |
| Counter indicator | |
| Assign value to an attribute or variable | |
| Assign value to attribute or variable (with external ports) | |
| Tally statistical indicator |