Dimitris Nathanael

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Overtaking maneuvers were studied in real traffic, by comparing cases where a change in the opposite traffic occurred during the overtaking maneuver i.e., appearance of an oncoming car, with cases where no change occurred during the maneuver i.e., either an already apparent oncoming car or no oncoming car. In total 45 naturally occurring cases of overtaking(More)
The paper discusses the limitations of current HCI design methods to effectively support the design of new artifacts which radically change the ecology of practice. The notions of catachresis and utilization schemes are used to describe the changing ecology of practice. The hierarchical model of shearing layers is proposed as a useful tool to support the(More)
The present research deals with aircraft maintenance technicians (AMTs) situated decision-making in a commercial aircraft maintenance department. The aim is twofold: first, to study how AMTs through their situated decisions experience inconsistencies between diverse organizational imperatives and pragmatic constraints and second, to identify persistent(More)
The present paper deals with a teaching method aiming at overcoming the difficulties of students for conceptual or abstract thinking within a course of User Centred Design. Following the hermeneutic approach a series of small in class exercises have been planned. In those exercises students are urged to brainstorm from early on with all levels of solution(More)
In this paper, we present four cases of deviating actions from prescribed procedures during a base maintenance check of a Dash8/Series100 aircraft by an aircraft maintenance organization in Greece. The detailed analysis of these cases let us identify specific factors that determined the concrete courses of action of maintenance technicians; from the most(More)
UNLABELLED The present paper is a commentary on the recently published IEA strategy for human factors/ergonomics (Dul, J., et al. (2012), A strategy for human factors/ergonomics: developing the discipline and profession. Ergonomics, 55(4), 377-395). Two main issues that demand attention are: (i) the way others understand our profession and discipline, and(More)
<b>Motivation</b> --- To identify the objects/entities that determine the ontology of the motorcyclist's visual exploration activity, when driving in urban arterials. This ontology may form the basis for modelling the motorcyclists' visual activity in urban traffic as well as shed light in their interaction with automobile drivers. <b>Research approach</b>(More)
<b>Motivation</b> -- To enrich our understanding of the factors that influence the decision to overtake against two way traffic, and this, beyond the limitations of the human visual system in making spatiotemporal estimations. Such understanding may be valuable for the design of future adaptive aid systems. <b>Research approach</b> -- An explorative(More)