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...
The operational semantics of user-defined relationships in object oriented database systems
In semantic data models, abstract relationship (e.g. generalization, aggregation, etc.) semantics are defined, specifying how insertion, deletion and modification...
A conceptual design aid environment for expert-database systems
With the actual penetration of expert systems into the business world, the question is, how the expert system idea...
A framework for object migration in object-oriented databases
This article presents a framework developed for accommodating various object migrations in 'statically-typed' object databases. Requirements for supporting object...
Improved model management with aggregated business process models
Contemporary organizations invest much efforts in creating models of their business processes. This raises the issue of how to...
Constructing target-aware results for keyword search on knowledge graphs
Existing work of processing keyword searches on graph data focuses on efficiency of result generation. However, being oblivious to...
Database design with user-definable modelling concepts
Modelling is an integral part of engineering processes. Consequently, database design for engineering applications should take into account the...
Semantic schema refinements for multilevel schema integration
Within the database field, schema refinements have been proved useful for documentation and maintenance purposes; moreover, schemata describing the...
Anchor modeling — Agile information modeling in evolving data environments
Maintaining and evolving data warehouses is a complex, error prone, and time consuming activity. The main reason for this...
