The Format Model: A Theory of database Organization
Journal of the ACM (JACM)
Relative information capacity of simple relational database schemata
SIAM Journal on Computing
A formal view integration method
SIGMOD '86 Proceedings of the 1986 ACM SIGMOD international conference on Management of data
A Theory of Attributed Equivalence in Databases with Application to Schema Integration
IEEE Transactions on Software Engineering
Object identity as a query language primitive
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
HDM—a model-based approach to hypertext application design
ACM Transactions on Information Systems (TOIS)
Using semantic values to facilitate interoperability among heterogeneous information systems
ACM Transactions on Database Systems (TODS)
Formal aspects of object identity in database manipulation
Formal aspects of object identity in database manipulation
Research problems in data warehousing
CIKM '95 Proceedings of the fourth international conference on Information and knowledge management
Building the data warehouse (2nd ed.)
Building the data warehouse (2nd ed.)
An object oriented approach to Web-based applications design
Theory and Practice of Object Systems - Special issue objects, databases, and the WWW
Integrating database and dialogue design
Knowledge and Information Systems
Entity-Relationship Modeling: Foundations of Database Technology
Entity-Relationship Modeling: Foundations of Database Technology
Olap Solutions: Building Multidimensional Information Systems
Olap Solutions: Building Multidimensional Information Systems
Designing Data-Intensive Web Applications
Designing Data-Intensive Web Applications
View Integration: A Step Forward in Solving Structural Conflicts
IEEE Transactions on Knowledge and Data Engineering
Correct Schema Transformations
EDBT '96 Proceedings of the 5th International Conference on Extending Database Technology: Advances in Database Technology
Design and Maintenance of Data-Intensive Web Sites
EDBT '98 Proceedings of the 6th International Conference on Extending Database Technology: Advances in Database Technology
Modeling Interaction and Media Objects
NLDB '00 Proceedings of the 5th International Conference on Applications of Natural Language to Information Systems-Revised Papers
Integration of Heterogeneous Object Schemas
ER '93 Proceedings of the 12th International Conference on the Entity-Relationship Approach: Entity-Relationship Approach
Conceptual Design and Development of Information Services
ER '98 Proceedings of the 17th International Conference on Conceptual Modeling
Modelling Data Warehouses and OLAP Applications by Means of Dialogue Objects
ER '99 Proceedings of the 18th International Conference on Conceptual Modeling
Dealing with Semantic Heterogeneity During Data Integration
ER '99 Proceedings of the 18th International Conference on Conceptual Modeling
Modeling Interactive Web Sources for Information Mediation
ER '99 Proceedings of the Workshops on Evolution and Change in Data Management, Reverse Engineering in Information Systems, and the World Wide Web and Conceptual Modeling
SiteLang: Conceptual Modeling of Internet Sites
ER '01 Proceedings of the 20th International Conference on Conceptual Modeling: Conceptual Modeling
Data Warehouse Schema and Instance Design
ER '98 Proceedings of the 17th International Conference on Conceptual Modeling
Design of Data-Intensive Web-Based Information Services
WISE '00 Proceedings of the First International Conference on Web Information Systems Engineering (WISE'00)-Volume 1 - Volume 1
Using abstract state machines for distributed data warehouse design
APCCM '04 Proceedings of the first Asian-Pacific conference on Conceptual modelling - Volume 31
Quality-Assured Design of On-Line Analytical Processing Systems using Abstract State Machines
QSIC '04 Proceedings of the Quality Software, Fourth International Conference
Balancing redundancy and query costs in distributed data warehouses
APCCM '05 Proceedings of the 2nd Asia-Pacific conference on Conceptual modelling - Volume 43
Conceptual modelling of web information systems
Data & Knowledge Engineering
A pragmatic method for the integration of higher-order entity-relationship schemata
ER'00 Proceedings of the 19th international conference on Conceptual modeling
Distribution design for higher-order data models
Data & Knowledge Engineering
Merging dynamic functionality: integration of XML transformations
APCCM '07 Proceedings of the fourth Asia-Pacific conference on Comceptual modelling - Volume 67
Dynamic data warehouse design as a refinement in ASM-based approach
APCCM '07 Proceedings of the fourth Asia-Pacific conference on Comceptual modelling - Volume 67
Typed Abstract State Machines for data-intensive applications
Knowledge and Information Systems
Refinements in typed abstract state machines
PSI'06 Proceedings of the 6th international Andrei Ershov memorial conference on Perspectives of systems informatics
Tutorial 4: reasoning about web information systems
ER'05 Proceedings of the 24th international conference on Perspectives in Conceptual Modeling
Complete Conceptual Schema Algebras
Fundamenta Informaticae
Hi-index | 0.00 |
View integration aims at replacing a set of existing views by a single new one in such a way that with respect to information capacity the new view dominates or is equivalent to the old ones. Therefore, in this article we first investigate a theory of schema equivalence and dominance for the higher-order Entity-Relationship model (HERM) based on the notion of computable queries. We then develop formal transformation rules for schema integration that are embedded in a pragmatic method telling how they should be applied for integration. We then apply the approach to views, which occur as the basic constituents for user interfaces as formalised by the notion of dialogue type. In two follow-on steps we apply the rule-based view integration technique to data warehouses and web information systems. In the case of data warehouses the fundamental idea is the separation of input from operational databases and output to on-line analytical processing (OLAP) systems. Both the extraction of data from the operational databases and the definition of the data-marts for OLAP can be formulated by views. In the case of web information systems, views form the core of media types, which provide abstract means for describing content, functionality, context and adaptivity to user preferences and intentions, end-devices, and channel limitations. In this case the queries defining the views must be highly expressive, as they must involve the creation of abstract identifiers, complex values and links. We extend the transformation rules to cope with these requirements. View cooperation provides an alternative to view integration in which the integrated view is only virtual. That is the constituting views are kept and exchange functions are designed to provide the same functionality as if the views were integrated.