Semantic similarity relations in schema integration
To find similarities between objects of different schemata at the semantic level is a crucial problem in schema integration....
Classifying and reusing conceptual schemas
The paper presents a methodological approach to guide the application engineer to construct a Library of Entity-Relationship schemas, classified...
Embedding data modelling in a general architecture for integrated information systems
Current approaches for the development of information systems are too strongly biased towards implementation. The architecture developed here shows...
Extending ER model clustering by relationship clustering
The entity relationship approach is a widely accepted method for conceptual database design. However, some problems arise if ER...
Semantic interoperability of multitemporal relational databases
Interoperability is concerned with the interaction of databases of different kinds. In this paper we consider semantic interoperability between...
Modeling time: Adequacy of three distinct time concepts for temporal databases
In this paper we present newly elaborated time concepts for precise and lossless information preservation in temporal databases. First...
Towards a unifying logic formalism for semantic data models
In the paper we look for the solution of two problems: the unification of various paradigms of semantic database...
Knowledge-based approach for abstracting hierarchical and network schema semantics
Semantic meanings are lost in existing schema once the conceptual model has been mapped into logical model. To recapture...
A state-space approach for database redesign
Data conversion from an old version to a new version of a database is a critical task, whose results...
Multilevel schema integration
We present a methodology for data schema integration, able to merge a set of schemas and the top-down chains...
