We find that most approaches analysing and designing computer artefacts, including our own, have been too narrowly focusing on understanding and designing ONE computer artefact, whereas such singular artefacts are less and less frequent in the world around us. Accordingly this paper introduces the concept of clusters of artefact to focus, analytically and design-wise, on multitudes of interconn...

Artefacts (physical and institutional) are ubiquitous of our social environment. We live in a tight network of socio-technical systems, which are systems where agents interact with created objects. There is an increasing need for rigorous methods to model, specify, and reason about socio-technical systems in general, and about artefacts and their functions in particular. We propose a formal the...

There is a growing interest in information systems implemented as Internet-based software artefacts. Little attention has been paid to a comprehensive picture of such artefacts and their difference in relationship to traditional software artefacts. This paper presents an analysis of the Internet-based software artefact in order to expose differences from and similarities to traditional informat...

Artefacts which occur during the processing of small biopsy specimens can cause sufficient tissue distortion to impair interpretation and can be a considerable source of nuisance. Triangular artefacts were noted in renal and liver biopsy specimens which were caused by foam sponges in embedding cassettes. Scanning electron microscopic examination of the sponges showed they comprised a mesh of sc...

BACKGROUND To reduce the possibility of secondary deterioration of spinal injuries, it is desirable to maintain the spinal immobilisation that is applied in the prehospital setting throughout computed tomography (CT) scanning. A previous study found that metallic components within the inflation valve of the vacuum mattresses caused CT artefacts. The aim of our study was to investigate the effec...