Enhanced active databases for federated information systems

Inhaltsverzeichnis (Table of Contents)

• Preface
• Abstract
• 1 Introduction
• 2 Related Work
• 3 Enhanced Active Databases
• 3.1 Active Database Systems
• 3.2 Active Event Notifications
• 3.3 Enhanced Active Databases in Federated Systems
• 3.4 Related Work on Active Database Systems
• 4 Implementing Enhanced Active Databases
• 4.1 Wrapper Architecture
• 4.2 DÍGAME Architecture
• 4.3 Related Work on Wrapper Architecture
• 5 Case Studies
• 6 Discussion
• 7 Conclusion

Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)

This dissertation investigates the application of enhanced active databases in federated information systems. It explores how these systems can be used to improve interoperability and consistency across distributed data sources. The work aims to provide a comprehensive understanding of the concepts, architectures, and implementation strategies related to enhanced active databases in a federated context.

• Active Event Notifications
• Interoperability in Federated Systems
• Global Integrity Maintenance
• Wrapper Architecture for Enhanced Active Databases
• DÍGAME Architecture for Peer Data Management

Zusammenfassung der Kapitel (Chapter Summaries)

• Chapter 1: Introduction provides an overview of federated information systems and the challenges associated with integrating distributed data sources. It introduces the concept of enhanced active databases and outlines the key contributions of this thesis.
• Chapter 2: Related Work reviews existing literature on federated information systems, active database systems, and wrapper architectures. It discusses the strengths and limitations of current approaches and sets the stage for the proposed solutions.
• Chapter 3: Enhanced Active Databases delves into the concept of enhanced active databases. It examines the functionality of active database systems, introduces the concept of Active Event Notifications, and explores their application in federated systems for improved interoperability and consistency.
• Chapter 4: Implementing Enhanced Active Databases focuses on practical implementations. It presents a universal wrapper architecture specifically designed for Active Event Notifications, which is then used to build the DÍGAME architecture for peer data management with push-based data and schema replication.
• Chapter 5: Case Studies provides real-world examples of how enhanced active databases can be applied in different scenarios. It demonstrates the practical benefits of the proposed solutions.
• Chapter 6: Discussion discusses the implications of the research findings and explores potential future directions for research in enhanced active databases and federated information systems.

Schlüsselwörter (Keywords)

This work focuses on the development of enhanced active databases within the context of federated information systems. It explores key concepts like Active Event Notifications, interoperability, global integrity maintenance, wrapper architectures, and the DÍGAME architecture. These concepts are fundamental to understanding the benefits and challenges of using enhanced active databases to improve data consistency and management in distributed environments. The research contributes to the field of database systems and federated information systems by providing practical solutions and insightful analysis of these crucial concepts.