| Abstract | .... 2 | |
| 1 | Introduction | .... 2 |
| 2 | Framework of Deductive and Object-Oriented Databases | .... 2 |
| 3 | Embedding Object-Orientation Concepts into Deductive Database | .... 3 |
| 3.1 | Problem to be Considerd | .... 3 |
| 3.2 | ψTerm-Tuple Representation with Type Hierarchy | .... 4 |
| 3.3 | O-Logic | .... 5 |
| 3.4 | F-Logic | .... 5 |
| 3.5 | DOT-Extended Terms Based on Dot Notation | .... 6 |
| 4 | Deductive Database as Active Objects | .... 7 |
| 4.1 | Problem to be Considered | .... 7 |
| 4.2 | Deductive Databases Embedding into a Hierarchy | .... 8 |
| 4.3 | Query Processing Based on Message Passing Perspectives | .... 8 |
| 5 | Perspectives | .... 9 |
| 5.1 | Other Extentions | .... 9 |
| 5.2 | Research Directions | .... 9 |
| 6 | Concluding Remarks | .... 9 |
| Acknowledgements | .... 10 | |
| References | .... 10 |
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