PhD Theses

BOOM: An Approach for an Object-Oriented Fourth Generation System

This work has been finished in March 1998.

Approximate Constraint Logic Programming

This work has been finished in June 1998. This thesis describes results that can be used to improve constraint logic programming (CLP) by increasing its expressivity and efficiency. This is done by introducing

De Modo Operandi: Towards the Interoperability of Workflow Information

This work has been finished in April 1995. The research reported in this dissertation deals with workflow management and electronic publishing. Recent developments like the evolvement of international standards, advanced communication services, as well as new delivery platforms, have resulted in a bewildering number of workflow systems, each of them being a proprietary solution.

TriGSflow - Workflow Management Based on Active Object-Oriented Database Systems and Extended Transaction Mechanisms

This work has been finished in February 1997. Effective business process management is a key success factor of today’s organizations acting in global markets. Their business processes have to dynamically adapt to changing requirements while executing in a consistent and reliable manner, even at the presence of activities performing concurrently.

A Four Level Architecture for Hypermedia Database Management Systems

This work has been finished in March 1998. In this thesis the Hypermedia Database Management System (HyperD) Architecture for hypermedia database management systems and the classes needed to implement the architecture are described.

Definition of Behavior in Object-Oriented Databases by View Integration

This work has been finished in September 1998. Databases in large organizations are usually designed by a group of people including potential future users of the database who know the application domain from everyday business.

Active Object-Oriented Databases: From Conceptual Design to Logical Design

This work has been finished in February 1998. The design of active object-oriented databases includes modeling the structure of objects, their passive behavior in the form of operations that can be performed on them, and their active behavior in the form of business rules.

Handling Variants of Business Document Models

This work has been finished in December 2011. The United Nations Centre for Trade Facilitation and Electronic Business (UN/CEFACT) envisions seamless information exchange between business partners in electronic commerce. Therefore, UN/CEFACT provides the UML Profile for Core Components for the definition of document models based on UML class diagrams.

Context Aware Core Components Modeling

This work has been finished in October 2012. Business document standards usually cover a hierarchical structure of thousands of elements that may be relevant in any business context (any industry, any geopolitical region, etc.

The Model Morphing Approach - Horizontal Transformation of Business Process Models

This work has been finished in February 2008. Owing to company mergers and business to business interoperability, there is a need for model transformation in the area of business process modeling to facilitate model integration and model synchronisation.