The adapter design pattern [1], commonly used for integration and evolution in component-based systems, is originally described by roles. In classbased systems, the conventional realization of the pattern maps these roles to classes. The recent appearance of mature languages supporting roles as first order programming constructs poses the question whether realizing this pattern directly in role...

This paper deals with the modeling and the automatic implementation of constraints in component based applications. Constraints have been assuming an ever more relevant role in modeling distributed systems as long as business rules implementation, design-by-contract practice, and faulttolerance requirements are concerned. Nevertheless, component developers are not sufficiently supported by exis...

Recent reforms in office concepts have led to new intensification strategies that aim at more flexibility and efficiency. Hot desking is one of these new working practices that reduces office space per worker. These new office concepts however, pose new challenges and problems to solve. This paper describes the development phase of an innovative touch screen application for location based servi...

This article is a case study of the maintenance required to the case base of a commercially fielded case-based reasoning (CBR) system that provides support for HVAC engineers enabling them to better specify HVAC installations. The article briefly describes the system and details how the case base grew rapidly, causing a problem of case redundancy. A simple algorithm to identify and remove redun...

This paper describes the rationale behind some of the key design decisions that guided the development of the TMiner component-based data mining framework. TMiner is a flexible framework that can be used as a stand-alone tool or integrated into larger Business Intelligence (BI) solutions. TMiner is a general-purpose component-based system designed to support the whole KDD process into a single ...

Traditionally, researchers have employed statistical methods to model crime. However, these approaches are limited by being unable to model individual actions and behaviour. Brantingham and Brantingham (1993) described that in their opinion a useful and productive model for simulating crime would have the ability to model the occurrence of crime and the motivations behind it both temporally and...

Due to the actual demographic development the use of Computer-Assisted Diagnosis (CAD) systems becomes a more important part of clinical workflows and clinical decision making. Because changes on the mucosa of the esophagus can indicate the first stage of cancerous developments, there is a large interest to detect and correctly diagnose any such lesion. We present a knowledge-based system which...

In a learning situation, varying needs of disabled children can be met in a personal and adaptive learning environment. We give a description of an agent-based learning environment for special needs education. The learning environment ensures individualized learning processes for every learner. We have implemented a functioning prototype targeted to children suffering from frontal lobe lesion. ...

The Open Reflective Component Architecture (ORCAN) is a component based software platform for Simulation software. It enables to build applications out of runtime exchangeable components. One purpose of this framework is to introduce advanced software design techniques in simulation software for a longterm distributed development process. The other benefit of this framework is a predefined set ...

Conventional Artiicial Intelligence techniques such as expert systems have often been found to be too brittle for large-scale applications. Model-based reasoning is a technique for making Artiicial Intelligence software applicable to problems of realistic size. In this working group, we have investigated some fundamental issues in model-based reasoning and various applications in diagnosis, con...