Workflow evolution
A basic step towards flexibility in workflow systems is the consistent and effective management of workflow evolution, i.e. of...
A model for classification structures with evolution control
We present a general model for classification structures that supports object role modelling. Objects can be associated with many...
Integrating versions in the OMT models
This paper shows how to extend the object, dynamic and functional models of the OMT method so that it...
Graphical Entity Relationship models: Towards a more user understandable representation of data
The Entity Relationship Model was originally proposed as a way of representing user requirements in a way that non-technical...
Modeling and system maintenance
This paper reports on recent work and directions in modern software architectures and their formal models with respect to...
Benefits and quality of data modelling — Results of an empirical analysis
In this paper the results of an empirical study about benefits and quality of data modelling are presented. The...
Adaptive schema design and evaluation in an object-oriented information system
This paper develops a formal framework for characterizing “normalization” in object-oriented schema design. We introduce style rules for achieving...
Normative language approach a framework for understanding
The development of information systems often presents communication problems between developers and users, because the languages used by both...
Assertion of consistency within a complex object database using a relationship construct
We define semantic overlapping as the description of different points of view on the same application context in different...
Improving quality in conceptual modelling by the use of schema transformations
The quality of the results produced in the early phases of systems development is a major factor in determining...
