Modelling data secrecy and integrity
The paper describes a semantic data model used as a design environment for multilevel secure database applications. The proposed...
Graphical query formulation for an entity-relationship model
A query language is defined in which users graphically manipulate entity-relationship (ER) diagrams to formulate queries. The theoretical foundation...
Steps towards a method for the formal modeling of dynamic objects
Fragments of a method to formally specify object-oriented models of a universe of discourse are presented. The task of...
Methodologies, tools and languages for building ontologies. Where is their meeting point?
In this paper we review and compare the main methodologies, tools and languages for building ontologies that have been...
Modeling relationships in object-relational databases
We propose an approach for designing an object-relational database. We inspect each case of semantic relationships (one-to-one, one-to-many, many-to-many...
An EREC framework for e-contract modeling, enactment and monitoring
A contract is an agreement between two or more parties to create mutual business relations or legal obligations. It...
An analysis of structural validity in entity-relationship modeling
We explore the criteria that contribute to the structural validity of modeling structures within the entityrelationship (ER) diagram. Our...
Relational database reverse engineering: Algorithms to extract cardinality constraints
This paper presents algorithms which build SQL queries to improve the reverse engineering of relational databases. Our process extracts...
History-based joins: Semantics, soundness and implementation
In this paper we study the use of case history for control structures in workflow processes. History-dependent control offers...
The linguistic level: Contribution for conceptual design, view integration, reuse and documentation
This article presents the linguistic level of KHEOPS, describing its structure and the information it contains. Even though natural...
