1. Conceptual Modeling of Knowledge Bases. - 2. Relational Databases. - 3. Object-Relational Databases. - 4. Reaction Rules. - 5. Deduction Rules. - 6. Principles of Positive Knowledge Systems. - 7. Temporal Databases. - 8. Fuzzy Databases. - 9. Further Examples of Positive Knowledge Systems. - 10. Principles of Non-Positive Knowledge Systems. - 11. Relational Factbases. - 12. Possibilistic Databases. - 13. Further Examples of Non-Positive Knowledge Systems. - 14. Communication and Cooperation. - 15. Deductive Knowledge Systems. - 16. Advanced Knowledge and Reasoning Services. - Appendices. - A Partial Logics with Two Kinds of Negation. - A. 1 Preliminaries. - A. 2 Partial Models. - A. 3 Classical Logic as a Special Case of Partial Logic. - A. 3. 1 From Partial to Classical Logic. - A. 3. 2 Confusing Semi-Partial Logic with Classical Logic. - B Compositional Possibilistic Logic. - B. 1 Introduction. - B. 2 Preliminaries. - B. 3 The Logical Semantics Problem of Reasoning with Uncertainty. - B. 3. 1 A Natural Solution. - B. 3. 2 The Non-Compositional Possibility-Theoretic Approach. - B. 4 Semi-Possibilistic Logic. - B. 5 Compositional Possibilistic Logic. - C On the Logic of Temporally Qualified Information. - C. 1 Syntax. - C. 2 Semantics. - C. 3 From Timepoints to Timestamps and Vice Versa. - C. 4 Minimal Models. - References. Language: English