Auflistung nach Autor:in "Fischbach, Kai"
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- ZeitschriftenartikelA Protection-Motivation Perspective to Explain Intention to Use and Continue to Use Mobile Warning Systems(Business & Information Systems Engineering: Vol. 64, No. 2, 2022) Fischer-Preßler, Diana; Bonaretti, Dario; Fischbach, KaiMobile emergency warning apps are essential for effective emergency communication – of course, provided the population intends to use them. Drawing on protection motivation theory, the study validated a psychometric model to explain what motivates individuals to install a warning app for the first time and to keep using it over time. Multi-group covariance-based structural equation modeling was used to model the answers to a survey that measured the drivers of intention to begin using or intention to continue using a warning app. The model shows that, for both non-users and users, trust, social influence, and response efficacy positively and maladaptive rewards negatively affect intention to use and intention to continue use warning apps. However, perceived vulnerability influences only intention to use, whereas response cost and self-efficacy affect continued use intention. Hence, this study enhances the theoretical understanding of technology-enabled protection behaviors and provides practitioners with a list of factors to consider for pushing the adoption and continued use of emergency warning applications.
- ZeitschriftenartikelAnalyse informeller Kommunikationsnetzwerke am Beispiel einer Fallstudie(Wirtschaftsinformatik: Vol. 51, No. 2, 2009) Fischbach, Kai; Schoder, Detlef; Gloor, Peter A.Die Struktur und Dynamik informeller Kommunikationsnetzwerke sind von zentraler Bedeutung für das Funktionieren betrieblicher Arbeitsprozesse und beeinflussen die Leistungs- und Innovationsfähigkeit von wissensintensiven Organisationen. Während sich die meisten Führungskräfte dessen bewusst sind, fehlt es an (teil-)automatischen, IT-gestützten Methoden und Instrumenten, die informelle Kommunikationsnetzwerke erfassbar machen. Während die Protokollierung elektronisch vermittelter Kommunikation in den letzten Jahren deutliche Fortschritte gemacht hat, ist die Abbildung von persönlichen Interaktionen nach wie vor sehr aufwändig und insbesondere bei manuellen Verfahren sehr fehleranfällig. Die Autoren zeigen in dem Beitrag, wie sich informelle Kommunikationsnetzwerke mit Hilfe von IT-gestützten Verfahren untersuchen lassen. Dabei präsentieren sie ein Instrument („Social Badges“), das Daten über die persönliche Kommunikation automatisch und genauer erfasst, als dies mit herkömmlichen Mitteln realisierbar ist. Die praktische Verwendbarkeit des Ansatzes wird anhand einer Fallstudie evaluiert.AbstractThe structure and dynamics of informal communication networks are of central significance for the functionality of enterprise workflows and for performance and innovation of knowledge-centric organizations. While most executives are aware of this fact, there is a general lack of (semi-) automated, IT-supported methods and instruments to make informal communication networks measurable. Although logging of electronic communications has made considerable progress over the past few years, it is still extremely difficult to map personal interaction; manual approaches in particular are extremely error-prone. The article shows how informal communication networks can be investigated by IT-based methods. At the same time, the authors will be presenting an instrument (“Social Badges”) that collects personal communications automatically and more precisely than legacy approaches allow. The practical applicability of the approach is evaluated through a case study.
- KonferenzbeitragDeriving taxonomies from automatic analysis of group membership structure in large social networks(Informatik 2009 – Im Focus das Leben, 2009) Egger, Marc; Fischbach, Kai; Gloor, Peter; Lang, Andre; Sprenger, Mark
- ZeitschriftenartikelFür Sie gelesen(Wirtschaftsinformatik: Vol. 49, No. 2, 2007) Schoder, Detlef; Fischbach, Kai
- ZeitschriftenartikelGrid computing(Wirtschaftsinformatik: Vol. 48, No. 6, 2006) Fischbach, Kai
- KonferenzbeitragHow to Identify Successful Actors of the Flickr Community and How to Determine Their Attributes(INFORMATIK 2008. Beherrschbare Systeme - dank Informatik. Band 2, 2008) Egger, Marc; Fischbach, Kai; Gloor, Peter; Lang, Andre; Sprenger, MarkThe emergence of Web 2.0 technologies has greatly enhanced capabili- ties of online social networking. Flickr is a social networking platform that enables users to share digital pictures. In contrast to other social networking sites, photos are the basic unit of information exchange in Flickr. We analyse relationships between users with a data set that covers 35% of the whole Flickr community. We define metrics of success for content, content providers, the relationship between both and identify implications of having information about successful content. We establish performance criteria and examine the correlation between the performance and the connectivity of users. Based on these key metrics we identify high quality content producers for a given category.
- ZeitschriftenartikelInformationssysteme für „Wicked Problems“(Wirtschaftsinformatik: Vol. 56, No. 1, 2014) Schoder, Detlef; Putzke, Johannes; Metaxas, Panagiotis Takis; Gloor, Peter A.; Fischbach, KaiMit unserem Forschungskommentar zeigen wir vielversprechende Forschungsrichtungen auf, die aus dem wechselseitigen Zusammenspiel von Social Media und Collective Intelligence hervorgehen. Wir konzentrieren uns auf sogenannte „Wicked Problems“ – eine Klasse von Problemen, „for which no single computational formulation of the problem is sufficient, for which different stakeholders do not even agree on what the problem really is, and for which there are no right or wrong answers, only answers that are better or worse from different points of view“ (Introne et al. in Künstl. Intell. 27:45–52, 2013). Wir argumentieren, dass insbesondere die Disziplin Wirtschaftsinformatik einen Beitrag zur Gestaltung geeigneter Systeme leisten kann und zwar aufgrund des Nutzens, der sich aus einer kombinierten Perspektive von Social Media und Collective Intelligence ableitet. Wir legen die Relevanz und Aktualität von Social Media und Collective Intelligence für die Wirtschaftsinformatik dar, schlagen erforderliche Funktionalitäten von Informationssystemen für Wicked Problems vor, beschreiben verwandte Themenfelder und Herausforderungen für die Forschung, identifizieren wissenschaftliche Methoden zu ihrer Lösung und führen konkrete Beispiele für erste Forschungsergebnisse an.AbstractThe objective of this commentary is to propose fruitful research directions built upon the reciprocal interplay of social media and collective intelligence. We focus on „wicked problems“ – a class of problems that Introne et al. (Künstl. Intell. 27:45–52, 2013) call „problems for which no single computational formulation of the problem is sufficient, for which different stakeholders do not even agree on what the problem really is, and for which there are no right or wrong answers, only answers that are better or worse from different points of view“. We argue that information systems research in particular can aid in designing appropriate systems due to benefits derived from the combined perspectives of both social media and collective intelligence. We document the relevance and timeliness of social media and collective intelligence for business and information systems engineering, pinpoint needed functionality of information systems for wicked problems, describe related research challenges, highlight prospective suitable methods to tackle those challenges, and review examples of initial results.
- ZeitschriftenartikelIntegrating IT Portfolio Management with Enterprise Architecture Management(Enterprise Modelling and Information Systems Architectures - An International Journal: Vol. 8, Nr. 2, 2013) Simon, Daniel; Fischbach, Kai; Schoder, DetlefThe management of information technology (IT) as a business has become a crucial factor in today’s complex and dynamic environments. Many firms thus have implemented IT portfolio and enterprise architecture (EA) management practices, and academic research has paid increasing attention to these concepts. However, their integration seems poorly substantiated; this article therefore seeks to answer two main questions: (1) What are differences and common characteristics of IT portfolio and EA management, and in what way can they be integrated? and (2) what factors and types might describe an integrated process design of EA management and project portfolio management in particular? To answer these questions, this study synthesises previous research and surveys EA practitioners to propose an EA management process map, as well as three descriptive factors and four clusters, which provide an integrated process design with project portfolio management. The interrelations with organisational aspects and software tool support are also explored. This article thereby clarifies and systematises the subject area while also offering advice for researchers and practitioners.
- ZeitschriftenartikelJazzFlow—Analyzing “Group Flow” Among Jazz Musicians Through “Honest Signals”(KI - Künstliche Intelligenz: Vol. 27, No. 1, 2013) Gloor, Peter A.; Oster, Daniel; Fischbach, KaiIn this project we aim to analyze “honest signals” between Jazz musicians by using sociometric badges with the goal of identifying structural properties of self-organizing creative teams. In particular, we are interested in the pre-requisites for “flow,” the state of work where “time flies,” and workers are at their most-productive best. We extend the concept of individual “flow” as defined by Csikszentmihalyi (Flow: the psychology of optimal experience. Harper Row, New York, 1990) to the group level (Sawyer in Group creativity: music, theater, collaboration. Psychology Press, Oxford, 2003; Group genius: the creative power of collaboration. Basic Books, New York, 2007), trying to identify some of the conditions indicative of the group flow state. We speculate that a band of Jazz musicians is particularly well suited to study group flow, because they are an archetype of a self-organizing creative team, involved in highly creatively work while passing leadership of the tune for the solo part from one band member to the next.
- ZeitschriftenartikelPeer-to-Peer(Wirtschaftsinformatik: Vol. 44, No. 6, 2002) Schoder, Detlef; Fischbach, Kai