In this paper, we discuss an evaluation of a computerized information system in an elderly care unit. The evaluation is based on the concept of actability, which is a combination of theories from Human-Computer Interaction and the Language Action Perspective. The reason for uniting different theories is to obtain a more holistic evaluation model. The findings show that the evaluated system has ...

Product classification schemes aim at semantic interoperability in B2B e-commerce by providing consensual definitions of product categories and recommending properties for describing product instances. Considerable industry work has been carried out on enhancing the size and thus coverage of these schemes. Horizontal classification schemes, however, often consist of more than 10,000 classes, se...

Interim Reports on work of the International Institute for Applied Systems Analysis receive only limited review. Views or opinions expressed herein do not necessarily represent those of the Institute, its National Member Organizations, or other organizations supporting the work. Acknowledgments * I am very grateful to Daniele Checchi, Giovanni Dosi and Youri Kaniovski for their suggestions and ...

Aspect mining aims at identifying, analysing, and refactoring crosscutting concerns throughout a legacy system for the purpose of improving software modularisation. This paper presents our investigation into raising the benefits of aspect mining to high-level domain-specific models. A key contribution is the capability to identify crosscutting concerns early in development, which will assist in...

We present a rigorous geometric analysis of the computation of the global position of an airborne video camera using aerial images of known landmarks. This has also been known as the perspective-n-point (PnP) problem. Based on the analysis, a robust Hough transform-like method, facilitated by a class of CORDIC-structured computations, to nd the solution for the problem, is shown feasible within...

The dominant perceptive regimen is still based on the Cartesian split (subject-object separation). We see matter as separated from mind, a perceptive model inherited from literacy-Cartesian culture that has not yet digested the new changes brought about by hybrid techniques and methodologies. This dominance is also reflected in the way we deal with the consensus construction of reality alongsid...

Evolving Optimization is a generic term used to make reference to the solution of planned and implemented computational problems with base in models of an evolutionary process. Most of the bioinspired algorithms, propose biological paradigms, and the concepts of natural selection, mutation, migration and reproduction or using other techniques are with a novel paradigm as Bacterial Foraging [8],...

The Language-Action Perspective (LAP) has attracted much interest in an information systems context. Many research approaches have been presented and discussed. However, there have been no reports on teaching LAP to students. We argue that it is of prime importance to expose students to LAP if we want to attract new researchers to the area. In this paper we will discuss the results of two cours...

\Head-coupled stereo display" refers to the use of a standard graphics workstation to display stereo images of three-dimensional scenes using perspective projections de ned dynamically by the positions of the observer's eyes. The user is presented with a virtual scene located within or in front of the workstation monitor and can move his or her head around to obtain di erent views. We discuss t...

How can basic research on mathematics instruction contribute to instructional improvement? In our research on the practical rationality of geometry teaching we describe existing instruction and examine how existing instruction responds to perturbations. In this talk I consider the proposal that geometry instruction could be improved by infusing it with activities where students use representati...