| Abstract | .... 2 | |
| 1 | Objects and Relations | .... 3 |
| 2 | Classes | .... 4 |
| 3 | Pools | .... 5 |
| 4 | Worlds | .... 6 |
| 5 | Processes | .... 6 |
| 6 | Ports and Channels | .... 8 |
| 7 | Conclusion | .... 9 |
| Acknowledgements | .... 9 | |
| References | .... 9 |
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