Sylvia Kowalewski

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The ongoing technical improvements in architecture design with improved features of mobile or smartphones do not automatically guarantee user acceptance, because technical and commercial aspects primarily drive the development of mobile communication systems and devices. Especially in early stages of technology development, user preferences and values are(More)
This paper describes two studies focusing on acceptance of medical technologies from different points of view – in general and in particular. Acceptance of medical assistive technologies was analyzed considering influences of user diversity factors. The first study explored how people perceive the aging process itself and showed how this perception is(More)
Possible explanations for the acceptance or rejection of technological innovations have become a crucial topic in research. Depending on the type of technology, a variety of factors affect acceptance motives. This paper looks into the influence of technical-self efficacy (TSE) on acceptance of technology infrastructure. An empirical study (n=137(More)
In this paper, several aspects of the composition of discrete state condition/event systems according to Sreenivas and Krogh are discussed. We introduce a new composition operator called parallel interconnection. It is shown to be a generalization of the originally defined cascade and feedback operators. Based on this composition operator, a modular(More)
We investigate the relationship between timed c/e systems 4] and timed automata 2]. We provide an eeective function that associates to each timed c/e system an \equivalent" timed automaton. Equivalence has to be understood here as describing essentially the same real{time behaviors. A beneet from providing such a function is that analysis tools developed(More)