Auflistung nach Autor:in "Kranz, Johann"
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- ZeitschriftenartikelBlockchain Token Sale(Business & Information Systems Engineering: Vol. 61, No. 6, 2019) Kranz, Johann; Nagel, Esther; Yoo, Youngjin
- ZeitschriftenartikelData Portability(Business & Information Systems Engineering: Vol. 65, No. 5, 2023) Kranz, Johann; Kuebler-Wachendorff, Sophie; Syrmoudis, Emmanuel; Grossklags, Jens; Mager, Stefan; Luzsa, Robert; Mayr, Susanne
- ZeitschriftenartikelErratum to: The Right to Data Portability: conception, status quo, and future directions(Informatik Spektrum: Vol. 44, No. 4, 2021) Kuebler-Wachendorff, Sophie; Luzsa, Robert; Kranz, Johann; Mager, Stefan; Syrmoudis, Emmanuel; Mayr, Susanne; Grossklags, Jens
- ZeitschriftenartikelGreen Information Systems wirksam einsetzen(Wirtschaftsinformatik: Vol. 55, No. 5, 2013) Hilpert, Hendrik; Kranz, Johann; Schumann, MatthiasLogistik und insbesondere Straßengütertransporte sind für einen großen Teil der weltweiten Treibhausgasemissionen verantwortlich. Aus diesem Grund ist in dieser Branche die ökologische Nachhaltigkeit besonders wichtig. „Grüne Informationssysteme“ (Green IS) können dabei einen wichtigen Beitrag leisten, indem sie nachhaltigere Geschäftsprozesse in der Logistik ermöglichen. Bislang wurde die Green-IS-Forschung vorrangig durch konzeptionelle und empirische Studien dominiert, während dem gestaltungsorientierten Paradigma folgende konkrete Umsetzungen von Green-IS-Artefakten die Ausnahme darstellen. Um diese Lücke zu schließen, entwickeln und evaluieren die Autoren ein Green-IS-Artefakt zur Erfassung und Analyse von Treibhausgasemissionen im Straßengütertransport – den „Carbon Tracker“. Die Entwicklung des Green-IS-Artefakts erfolgt anhand von Designprinzipien, die auf theoriegeleiteten Überlegungen sowie empirischer Evidenz basieren. Der Carbon Tracker ermöglicht es, detaillierte Informationen über die entstandenen Treibhausgasemissionen zu erfassen und bereitzustellen. Das System soll somit das Verständnis für Treibhausgasemissionen im Straßengütertransport verbessern und ermöglicht eine Entscheidungsunterstützung für das Umweltcontrolling. Die Evaluierung des entwickelten Prototyps zeigt, dass im Vergleich zu bisher verwendeten Best-Practice-Ansätzen genauere und detailliertere Informationen über die entstandenen Treibhausgasemissionen bereitgestellt werden. Der vorliegende Beitrag legt dar, wie Green IS nachhaltigere Geschäftsprozesse unterstützen können und ebnet den Weg für weitere designorientiere Green-IS-Forschung.AbstractLogistics and especially road transportation account for a major proportion of global greenhouse gas emissions. Thus, increasing eco-sustainability is particularly important in this sector. Green information systems can support the transition towards more eco-sustainable business processes in logistics. To date research in Green IS has been dominated by conceptual and empirical studies, while the community has been reluctant to do design science research developing IS artifacts. Addressing this gap, we develop and evaluate a Green IS artifact for GHG emission tracking in road transportation processes – named Carbon Tracker. The design process was guided by design principles derived from prior Green IS literature. The artifact enables more eco-sustainable practices in logistics to emerge as it provides detailed information about GHG emissions that is indispensable for advanced organizational sense- and decision-making. The evaluation shows that the use of Carbon Tracker leads to more accurate and detailed information on emissions as well as more seamless and efficient workflows than today’s best-practice approaches. Thus, the paper demonstrates how Green IS can be leveraged for more eco-sustainable and efficient business processes and paves the way for further design-oriented research in the Green IS domain.
- KonferenzbeitragOnline Service Switching Intentions and Attitudes towards Data Portability – The Role of Technology-related Attitudes and Privacy(Mensch und Computer 2022 - Tagungsband, 2022) Luzsa, Robert; Mayr, Susanne; Syrmoudis, Emmanuel; Grossklags, Jens; Kübler-Wachendorff, Sophie; Kranz, JohannThe European General Data Protection Regulation aims at empowering users of online services. In particular, the Right to Data Portability is intended to facilitate switching between online services by allowing users to port data between service providers. However, little is known about psychological factors that influence whether users desire switching between services and using data portability. Identifying such factors could support the design of userfriendly data portability solutions and awareness-raising measures, thereby strengthening users’ digital sovereignty. The present study therefore examines predictors of users’ intentions to switch online services and their attitudes towards data portability (i.e., intention to use portability). Drawing upon related research, switching intentions and attitudes towards data portability are assumed tobe affected by users’ technology acceptance, technology competency and subjective importance of privacy. An online quantitative questionnaire study with a large, sociodemographically diverse German sample (N = 995) was conducted, and data were analyzed via logistic regression modelling. The results reveal that switching intentions are more prevalent among users who attach great importance to privacy, users who are open towards new technologies, as well as younger users and users with a university degree. Higher importance of privacy and higher technology competency are linked to an increased desire to use data portability. Users reported the greatest need for data portability for data-storage (i.e., cloud) services. From the results, conclusions for implementing user-friendly data portability solutions and public information campaigns are drawn, and directions for further user-centered research on online service switching and data portability are discussed.
- ZeitschriftenartikelThe Right to Data Portability: conception, status quo, and future directions(Informatik Spektrum: Vol. 44, No. 4, 2021) Kuebler-Wachendorff, Sophie; Luzsa, Robert; Kranz, Johann; Mager, Stefan; Syrmoudis, Emmanuel; Mayr, Susanne; Grossklags, JensFor almost three years, the General Data Protection Regulation (GDPR) has been granting citizens of the European Union the right to obtain personal data from companies and to transfer these data to another company. The so-called Right to Data Portability (RtDP) promises to significantly reduce switching costs for consumers in digital service markets, provided that its potential is effectively translated into reality. Thus, of all the consumer rights in the GDPR, the RtDP has the potential to be the one with the most significant implications for digital markets and privacy. However, our research shows that the RtDP is barely known among consumers and can currently only be implemented in a fragmented manner—especially with regard to the direct transfer of data between online service providers. We discuss several ways to improve the implementation of this right in the present article.
- ZeitschriftenartikelToken Economy(Business & Information Systems Engineering: Vol. 63, No. 4, 2021) Sunyaev, Ali; Kannengießer, Niclas; Beck, Roman; Treiblmaier, Horst; Lacity, Mary; Kranz, Johann; Fridgen, Gilbert; Spankowski, Ulli; Luckow, André