@article{HerrmannKirschnerKleinertetal., author = {Herrmann, Frank and Kirschner, Jan Michael and Kleinert, Thomas and Fritzsche, Harald}, title = {Big Data im Bereich der technischen Sauberkeit}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik (AKWI)}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik (AKWI)}, number = {13}, publisher = {Hochschule}, address = {Luzern}, issn = {2296-4592}, doi = {10.26034/lu.akwi.2021.3296}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-30550}, pages = {34 -- 42}, abstract = {Dieses Projekt befasst sich mit Fragestellungen zur Anwendung von k{\"u}nstlicher Intelligenz im Bereich der Technischen Sauberkeit. Durch Literaturforschungen, die einen Ablauf nach Fettke 2006 haben, werden KI-Anwendungen gesucht, die bereits im Zusammenhang mit der Technischen Sauberkeit verwendet werden. Die Forschungen konnten zw{\"o}lf Literaturquellen ermitteln. Durch diese Literaturanalyse wurde festgestellt, dass 91 Prozent CV (Computer Vision) zur Partikelerkennung verwenden. Aus diesem Grund wurde anschließend ein CV Modell zur Partikelerkennung implementiert. Durch die Konfusionsmatrix konnte eine Treffergenauigkeit von 82 Prozent festgestellt werden. Daraus folgt, dass eine Partikelklassifikation m{\"o}glich ist. Abschließend wurde eine weitere Literaturforschung zu Text Mining Applikationen durchgef{\"u}hrt, da der Bereich der Qualit{\"a}tsanalyse im Monitoring laut Aufgabenstellung eingezogen werden sollte. In dieser konnte kein positives Ergebnis erzielt werden, da speziell nach fertigen Anwendungen gesucht wurde, die Analysetexte im Bereich der technischen Sauberkeit kategorisieren k{\"o}nnen.}, language = {de} } @article{FroeseJainNiedermeieretal., author = {Froese, Vincent and Jain, Brijnesh and Niedermeier, Rolf and Renken, Malte}, title = {Comparing temporal graphs using dynamic time warping}, series = {Social Network Analysis and Mining}, volume = {10}, journal = {Social Network Analysis and Mining}, publisher = {Springer Nature}, doi = {10.1007/s13278-020-00664-5}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-38493}, pages = {1 -- 16}, abstract = {Within many real-world networks, the links between pairs of nodes change over time. Thus, there has been a recent boom in studying temporal graphs. Recognizing patterns in temporal graphs requires a proximity measure to compare different temporal graphs. To this end, we propose to study dynamic time warping on temporal graphs. We define the dynamic tem- poral graph warping (dtgw) distance to determine the dissimilarity of two temporal graphs. Our novel measure is flexible and can be applied in various application domains. We show that computing the dtgw-distance is a challenging (in general) NP-hard optimization problem and identify some polynomial-time solvable special cases. Moreover, we develop a quadratic programming formulation and an efficient heuristic. In experiments on real-world data, we show that the heuristic performs very well and that our dtgw-distance performs favorably in de-anonymizing networks compared to other approaches.}, language = {en} } @article{Schildgen, author = {Schildgen, Johannes}, title = {Interaktive Vorlesungsfolien mit SQL-Unterst{\"u}tzung}, series = {Datenbank-Spektrum}, volume = {21}, journal = {Datenbank-Spektrum}, number = {1}, publisher = {Springer Nature}, doi = {10.1007/s13222-020-00364-6}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-26059}, pages = {19 -- 27}, abstract = {Mit PowerPoint oder LaTeX Beamer erstellte Vorlesungsfolien sind meist statisch und dienen haupts{\"a}chlich der Pr{\"a}sentation von Lehrinhalten. Als Alternative dazu werden drei Erweiterungen f{\"u}r das HTML- und JavaScript-basierte Pr{\"a}sentationsframework reveal.js vorgestellt, die f{\"u}r mehr Interaktion in der Datenbankenlehre sorgen sollen: (1) Eine Live-Ausf{\"u}hrung von SQL-Anfragen und eine Darstellung des Anfrageergebnisses direkt auf der Folie; mit M{\"o}glichkeit zur Anpassung der Anfrage im Pr{\"a}sentationsbetrieb, (2) eine JSON-basierte Beschreibung von ER-Diagrammen, welche graphisch auf den Folien dargestellt werden sollen und (3) eingebettete Smartphone-Umfragen, um zwischendurch - ohne einen Kontextwechsel - Quiz-Fragen zu stellen.}, language = {de} } @article{WulfWestnerStrahringer, author = {Wulf, Frederik and Westner, Markus and Strahringer, Susanne}, title = {We have a platform, but nobody builds on it - what influences Platform-as-a-Service post-adoption?}, series = {International Journal of Information Systems and Project Management}, volume = {10}, journal = {International Journal of Information Systems and Project Management}, number = {1}, issn = {2182-7788}, doi = {10.12821/ijispm100103}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-33778}, pages = {49 -- 70}, abstract = {When higher-level management of a company has strategically decided to adopt Platform-as-a-Service (PaaS) as a Cloud Computing (CC) delivery model, decision-makers at lower hierarchy levels still need to decide whether they want to post-adopt PaaS for building or running an information system (IS) - a decision that numerous companies are currently facing. This research analyzes the influential factors of this managerial post-adoption decision on the IS-level. A survey of 168 business and Information Technology (IT) professionals investigated the influential factors of this PaaS post-adoption decision. The results show that decision-makers' perceptions of risks inhibit post-adoption. Vendor trust and trialability reduce these perceived risks. While competitive pressure increases perceived benefits, it does not significantly influence PaaS post-adoption. Controversially, security and privacy, cost savings, and top management support do not influence post-adoption, as opposed to findings on company-level adoption. Subsamples constructed by the form of post-adoptive use (migration of IS, enhancement of IS, new IS development) exhibit better goodness-of-fit measures than the full sample. Future research should explore this interrelation of the form of post-adoptive use and the post-adoption influence factors.}, language = {en} } @article{StrahringerWestner, author = {Strahringer, Susanne and Westner, Markus}, title = {Von der IT-Leitung zur (Mit-)Gestaltung der digitalen Transformation}, series = {HMD Praxis der Wirtschaftsinformatik}, volume = {59}, journal = {HMD Praxis der Wirtschaftsinformatik}, publisher = {Springer}, doi = {10.1365/s40702-022-00875-8}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-39922}, pages = {717 -- 720}, abstract = {Die entsprechenden Antworten, wie die IT-F{\"u}hrung in Unternehmen auszugestalten sei, ist Gegenstand vielf{\"a}ltiger Forschung und im Ergebnis situativ aber nicht abschließend zu beantworten. Das vorliegende Schwerpunktheft greift diesen Aspekt auf und beleuchtet die Zukunft der F{\"u}hrung in der IT.}, language = {de} } @article{HerrmannNangmoWankoZeller, author = {Herrmann, Frank and Nangmo Wanko, Merveille and Zeller, Bernhard}, title = {Digitale Transformation in Echtzeit: Die Ziele von morgen basierend auf dem Datenmodell von gestern}, series = {Anwendungen und Konzepte der Wirtschaftsinformatik}, volume = {16}, journal = {Anwendungen und Konzepte der Wirtschaftsinformatik}, publisher = {Technische Hochschule Wildau}, issn = {2296-4592}, doi = {10.26034/lu.akwi.2022.3453}, pages = {37 -- 47}, abstract = {Die Digitale Transformation fordert Unternehmen aller Couleur. Ironischer Weise sind es gerade die bisher verwendeten IT-Systeme mit ihren starren Strukturen, die Unternehmen in Ihrer digitalen Trans-formation oft ausbremsen. Auch wenn die Soft-warehersteller l{\"a}ngst reagiert haben und neue, flexib-lere Versionen ihrer Produkte anbieten, so ist ein gr{\"o}ßerer Softwarewechsel immer noch eine Heraus-forderung f{\"u}r Unternehmen und ein Schritt der wohl-{\"u}berlegt und geplant sein will. In dieser Arbeit wird deshalb ein Vorgehen vorge-stellt, um mittels In-Memory Technologie und Vir-tualisierung zumindest die wichtigsten Ergebnisse der Transformation bereits auf den bestehenden Da-tenmodellen in Echtzeit zu generieren. Dadurch wird genug Zeit gewonnen, um die eigentliche Transfor-mation der IT-Landschaft geplant und mit der not-wendigen Sorgfalt durchzuf{\"u}hren.}, language = {de} } @article{BaryWestnerStrahringer2019, author = {Bary, Benedikt von and Westner, Markus and Strahringer, Susanne}, title = {How decision maker's personal preferences influence the decision to backsource IT services}, series = {Journal of Information Technology Management (JITM)}, volume = {30}, journal = {Journal of Information Technology Management (JITM)}, number = {3}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-233}, pages = {1 -- 22}, year = {2019}, abstract = {To prepare their IT landscape for future business challenges, companies are changing their IT sourcing arrangements by using selective sourcing approaches as well as multi-sourcing with more but smaller sourcing contracts. Companies therefore have to reconsider and re-evaluate their IT sourcing setup more frequently. Collecting data from 251 global experts, we empirically tested the effect of service quality, relationship quality, and switching costs on IT sourcing decisions using partial least squares (PLS) analysis. Drawing on previously conducted expert interviews, our model extends previous studies and introduces a decision maker's sourcing preferences as a not yet examined moderator on IT sourcing decisions. This allows us to investigate the influence of the decision maker's beliefs on the decision process. We were able to confirm the negative effect of switching costs on a decision in favor of backsourcing, however we could not find significant support for the remaining hypotheses. We further discuss potential reasons for our findings and suggest future research opportunities based on our contribution.}, subject = {Outsourcing}, language = {en} } @article{KoenningStrahringerWestner, author = {K{\"o}nning, Michael and Strahringer, Susanne and Westner, Markus}, title = {Unraveling the impact of cultural distance on IT outsourcing success}, series = {Journal of Enterprise Information Management}, volume = {34}, journal = {Journal of Enterprise Information Management}, number = {3}, publisher = {Emerald}, doi = {10.1108/JEIM-06-2019-0151}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-8708}, pages = {811 -- 837}, abstract = {PURPOSE IT outsourcing (ITO) has developed into an established practice for organizations but the interorganizational and oftentimes international collaboration it involves comes at a price: Reports from academia and practice suggest that more than 25\% of all ITO projects fail, many because of cultural differences between client and provider organizations. Against this background, this paper analyzes the complex nature of cultural distance and its multi-faceted effect on ITO success. DESIGN/METHODOLOGY/APPROACH This paper builds upon extant literature on culture on the national, organizational and team level, conceptualizes its effect on relationship quality and ITO success, and hypothesizes a model on potential moderators and management techniques to offset culture-induced challenges. It then evaluates and refines the model by means of an interpretive qualitative research design for an in-depth single-case study of ProSiebenSat.1 Media SE (P7S1), a leading European media company that reconfigured its IT sourcing model three times in 10 years. FINDINGS The results from interviews with top managers from client and provider organizations represent one of the first integrated views on the critical importance of cultural compatibility on multiple levels, provide manifold examples for its complex effect on ITO success, as well as moderators and potential management techniques to promote ITO success. RESEARCH LIMITATIONS/IMPLICATIONS This paper contributes relevant empirical insights to the growing body of literature on culture and its underestimated role in ITO success. It builds on tentative theory that is confirmed and refined. PRACTICAL IMPLICATIONS The paper helps in substantiating the complex and intangible nature of culture and demonstrates means for its effective management. ORIGINALITY/VALUE The results from interviews with top managers from client and provider organizations represent one of the first integrated views on the critical importance of cultural compatibility on multiple levels, provide manifold examples for its complex effect on ITO success, as well as moderators and potential management techniques to promote ITO success.}, language = {en} } @article{SchoenbergerScherzingerMauerer, author = {Sch{\"o}nberger, Manuel and Scherzinger, Stefanie and Mauerer, Wolfgang}, title = {Ready to Leap (by Co-Design)? Join Order Optimisation on Quantum Hardware}, series = {Proceedings of the ACM on Management of Data, PACMMOD}, volume = {1}, journal = {Proceedings of the ACM on Management of Data, PACMMOD}, number = {1}, publisher = {ACM}, address = {New York, NY,}, doi = {10.1145/3588946}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-56634}, pages = {1 -- 27}, abstract = {The prospect of achieving computational speedups by exploiting quantum phenomena makes the use of quantum processing units (QPUs) attractive for many algorithmic database problems. Query optimisation, which concerns problems that typically need to explore large search spaces, seems like an ideal match for the known quantum algorithms. We present the first quantum implementation of join ordering, which is one of the most investigated and fundamental query optimisation problems, based on a reformulation to quadratic binary unconstrained optimisation problems. We empirically characterise our method on two state-of-the-art approaches (gate-based quantum computing and quantum annealing), and identify speed-ups compared to the best know classical join ordering approaches for input sizes that can be processed with current quantum annealers. However, we also confirm that limits of early-stage technology are quickly reached. Current QPUs are classified as noisy, intermediate scale quantum computers (NISQ), and are restricted by a variety of limitations that reduce their capabilities as compared to ideal future quantum computers, which prevents us from scaling up problem dimensions and reaching practical utility. To overcome these challenges, our formulation accounts for specific QPU properties and limitations, and allows us to trade between achievable solution quality and possible problem size. In contrast to all prior work on quantum computing for query optimisation and database-related challenges, we go beyond currently available QPUs, and explicitly target the scalability limitations: Using insights gained from numerical simulations and our experimental analysis, we identify key criteria for co-designing QPUs to improve their usefulness for join ordering, and show how even relatively minor physical architectural improvements can result in substantial enhancements. Finally, we outline a path towards practical utility of custom-designed QPUs.}, language = {en} } @article{KaessStrahringerWestner, author = {K{\"a}ss, Sebastian and Strahringer, Susanne and Westner, Markus}, title = {Practitioners' Perceptions on the Adoption of Low Code Development Platforms}, series = {IEEE Access}, journal = {IEEE Access}, publisher = {IEEE}, issn = {2169-3536}, doi = {10.1109/ACCESS.2023.3258539}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-59170}, pages = {30}, abstract = {Organizations are under increasing pressure to develop applications within budget and time at high quality. Therefore, multiple organizations adopt Low Code Development Platforms (LCDP) to develop applications faster and cheaper compared to traditional application development. However, current research on LCDP adoption lacks empirical grounding as well as a deeper understanding of the importance of adoption drivers and inhibitors. We conducted semi-structured interviews and a Delphi study with seventeen experts to address these gaps. As a result, we identified twelve drivers and nineteen inhibitors for adopting LCDPs. We show that the experts have a consensus on the most and the least important drivers and inhibitors for LCDP adoption. Yet, the ranking of the drivers and inhibitors between the most and least important is highly context dependent. For some drivers and inhibitors, the experts' ranking is similar to academic literature, whereas, for others, it differs. In conclusion, the study at hand empirically validates drivers and inhibitors for LCDP adoption, adds six new drivers and six new inhibitors to the body of knowledge, and analyses the importance of these factors.}, language = {en} } @article{MaierSchlattlGuessetal., author = {Maier, Robert and Schlattl, Andreas and Guess, Thomas and Mottok, J{\"u}rgen}, title = {CausalOps - Towards an industrial lifecycle for causal probabilistic graphical models}, series = {Information and Software Technology}, journal = {Information and Software Technology}, publisher = {Elsevier}, issn = {0950-5849}, doi = {10.1016/j.infsof.2024.107520}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-73350}, abstract = {Context: Causal probabilistic graph-based models have gained widespread utility, enabling the modeling of cause-and-effect relationships across diverse domains. With their rising adoption in new areas, such as safety analysis of complex systems, software engineering, and machine learning, the need for an integrated lifecycle framework akin to DevOps and MLOps has emerged. Currently, such a reference for organizations interested in employing causal engineering is missing. This lack of guidance hinders the incorporation and maturation of causal methods in the context of real-life applications. Objective: This work contextualizes causal model usage across different stages and stakeholders and outlines a holistic view of creating and maintaining them within the process landscape of an organization. Method: A novel lifecycle framework for causal model development and application called CausalOps is proposed. By defining key entities, dependencies, and intermediate artifacts generated during causal engineering, a consistent vocabulary and workflow model to guide organizations in adopting causal methods are established. Results: Based on the early adoption of the discussed methodology to a real-life problem within the automotive domain, an experience report underlining the practicability and challenges of the proposed approach is discussed. Conclusion: It is concluded that besides current technical advancements in various aspects of causal engineering, an overarching lifecycle framework that integrates these methods into organizational practices is missing. Although diverse skills from adjacent disciplines are widely available, guidance on how to transfer these assets into causality-driven practices still need to be addressed in the published literature. CausalOps' aim is to set a baseline for the adoption of causal methods in practical applications within interested organizations and the causality community.}, language = {en} } @article{WestnerReichenederMatschi, author = {Westner, Markus and Reicheneder, Matthias and Matschi, Markus}, title = {From Captive Centers to Global Integration}, series = {Information Resources Management Journal}, volume = {38}, journal = {Information Resources Management Journal}, number = {1}, publisher = {IGI Global}, issn = {1533-7979}, doi = {10.4018/IRMJ.373322}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-80406}, pages = {25}, abstract = {Contemporary developments in virtual work and global talent management are transforming information technology (IT) nearshoring and offshoring practices, yet research on organizational responses remains limited. Through expert interviews with 33 IT executives (76\% chief information officers) from Germany's top 500 companies, this article examines organizational models, strategies, and good practices in IT nearshoring and offshoring. It reveals a shift from traditional captive centers toward fully integrated global teams, enabling high-value task delivery and reflecting increased workforce maturity. Companies are expanding their operations driven by talent needs rather than cost savings, with success factors including employee integration and robust on-site management. This study contributes to theory and practice by providing a framework for understanding organizational models in global IT delivery and offering actionable insights for executives, emphasizing workforce integration over geographical separation.}, subject = {Offshoring}, language = {en} } @article{GrabingerHauserMottok, author = {Grabinger, Lisa and Hauser, Florian and Mottok, J{\"u}rgen}, title = {On the perception of graph layouts}, series = {Journal of Software: Evolution and Process}, journal = {Journal of Software: Evolution and Process}, publisher = {Wiley}, doi = {10.1002/smr.2599}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-62973}, abstract = {In the field of software engineering, graph-based models are used for a variety of applications. Usually, the layout of those graphs is determined at the discretion of the user. This article empirically investigates whether different layouts affect the comprehensibility or popularity of a graph and whether one can predict the perception of certain aspects in the graph using basic graphical laws from psychology (i.e., Gestalt principles). Data on three distinct layouts of one causal graph is collected from 29 subjects using eye tracking and a print questionnaire. The evaluation of the collected data suggests that the layout of a graph does matter and that the Gestalt principles are a valuable tool for assessing partial aspects of a layout.}, language = {en} } @article{ScharfHaugRitthaleretal., author = {Scharf, Anna and Haug, Sonja and Ritthaler, Markus and Raptis, Georgios}, title = {Chancen und Herausforderungen der Digitalisierung bei der Rehabilitation - Ergebnisse einer Befragung von Rehabilitationseinrichtungen}, series = {Die Rehabilitation: Zeitschrift f{\"u}r Praxis und Forschung in der Rehabilitation}, volume = {62}, journal = {Die Rehabilitation: Zeitschrift f{\"u}r Praxis und Forschung in der Rehabilitation}, number = {5}, publisher = {Thieme}, address = {Stuttgart}, doi = {10.1055/a-2123-1566}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-64726}, pages = {299 -- 307}, abstract = {Ziel der Studie: Ziel der Studie ist die Messung des Stands der Digitalisierung und die mit einer Anbindung an die Telematikinfrastruktur verbundenen Chancen und Herausforderungen f{\"u}r Rehabilitationseinrichtungen. Methodik: Teilstandardisierte Online-Befragung bei Tr{\"a}gern von Rehabilitationseinrichtungen in Bayern (n=33). Der Fragebogen mit 36 Fragen beinhaltet eine leicht ver{\"a}nderte Skala auf Basis des „Electronic Medical Record Adoption Model (EMRAM)". Ergebnisse: Der Digitalisierungsgrad wurde in 70 Prozent der Rehabilitationseinrichtungen mit Stufe 0 angegeben (Stufenmodell bis 7). Die {\"U}bermittlung patientenbezogener Daten (Eingang und Ausgang) erfolgt h{\"a}ufig analog, wohingegen die Verarbeitung innerhalb der Einrichtung in vielen F{\"a}llen bereits {\"u}berwiegend digital ist. Beim Anschluss an die Telematikinfrastruktur wird hoher Aufwand bei der Installation, aber auch der Schulung des Personals und der Anpassung der Arbeitsorganisation gesehen. Schlussfolgerung: Durch {\"A}nderung der gesetzlich-finanziellen Lage in Deutschland er{\"o}ffnen sich f{\"u}r Rehabilitationseinrichtungen neue M{\"o}glichkeiten einer verst{\"a}rkten Digitalisierung. H{\"u}rden h{\"a}ngen mit Anforderungen an IT-Sicherheit, Schulung des Personals und sowie dem ebenfalls geringen Digitalisierungsstand bei Krankenh{\"a}usern und {\"A}rzt*innen sowie Patient*innen zusammen, die eine digitale Daten{\"u}bermittlung erschweren.}, language = {de} } @article{Westner, author = {Westner, Markus}, title = {Low-Code/No-Code: Citizen Developers and the Surprising Future of Business Applications}, series = {HMD Praxis der Wirtschaftsinformatik}, journal = {HMD Praxis der Wirtschaftsinformatik}, publisher = {Springer Fachmedien}, address = {Wiesbaden}, issn = {1436-3011}, doi = {10.1365/s40702-024-01106-y}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-74906}, pages = {1067 -- 1069}, language = {en} } @article{AltmannSchleglVolbert, author = {Altmann, Matthias and Schlegl, Peter and Volbert, Klaus}, title = {A low-power wireless system for energy consumption analysis at mains sockets}, series = {EURASIP Journal on Embedded Systems}, journal = {EURASIP Journal on Embedded Systems}, number = {1}, publisher = {Springer Nature}, doi = {10.1186/s13639-016-0041-y}, pages = {18}, abstract = {Introduction: Improving energy efficiency and reducing energy wastage is an important topic of our time. But it is quite difficult to figure out how much of our total electricity bill can be mapped to which device or at what time the device used it. We believe energy efficiency of normal households can be improved, if this kind of transparency would be available. In this article, we present a system for energy measurement at mains sockets to gain a transparent view of energy consumption for each device in a household. It consists of several smart energy measuring devices (SEMDs) that use a low-power radio protocol to dynamically build and connect to a radio network to transfer power usage date to a server. At the server, the data is stored and can be accessed via web interface. Results: Our primary goal was to build a back-end system for an energy metering platform with very low energy consumption. This platform can provide data for a variety of services that enables users (the consumers) to understand and improve their energy consumption behavior and increase overall energy efficiency of their households.}, language = {en} } @article{StrasserWestnerStrahringer, author = {Strasser, Artur and Westner, Markus and Strahringer, Susanne}, title = {Knowledge transfer in IS offshoring}, series = {Journal of Systems and Information Technology}, volume = {21}, journal = {Journal of Systems and Information Technology}, number = {1}, issn = {1328-7265}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-294}, pages = {36 -- 62}, abstract = {Purpose This paper aims to investigate the main tasks, necessary skills, and the implementation of the offshore coordinator's role to facilitate knowledge transfer in information systems (IS) offshoring. Design/methodology/approach This empirical exploratory study uses the classical Delphi method that includes one qualitative and two quantitative rounds to collect data on IS experts' perceptions to seek a consensus among them. Findings The participants agreed, with strong consensus, for a set of 16 tasks and 15 skills. The tasks focused primarily on relationship management and facilitating knowledge transfer on different levels. The set of skills consists of approximately 25 per cent "hard" skills, e.g. professional language skills and project management skills, and approximately 75 per cent "soft" skills, e.g. interpersonal and communication skills and the ability to deal with conflict. Two factors mainly influence implementing the offshore coordinator role: project size and the number of projects to be supported simultaneously. Practical implications The findings provide indications of how to define and fulfill this crucial role in practice to facilitate the knowledge transfer process in a positive way. Originality/value Similarities in previous research findings are aggregated to examine the intermediate role in detail from a consolidated perspective. This results in the first comprehensive set of critical tasks and skills assigned to the competency dimensions of the universal competency framework, demonstrating which and how many competency dimensions are critical.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{Lauer, author = {Lauer, Norina}, title = {Teletherapie - hat die Logop{\"a}die eine digitale Zukunft?}, series = {Forum Logop{\"a}die}, volume = {34}, journal = {Forum Logop{\"a}die}, number = {5}, doi = {10.2443/skv-s-2020-53020200502}, pages = {12 -- 17}, abstract = {Teletherapie beinhaltet vielf{\"a}ltige synchrone und asynchrone M{\"o}glichkeiten zur digitalen Versorgung von PatientInnen. Die Videotherapie stellt hierbei ein wichtiges synchrones Angebot dar, mit dem das therapeutische Angebot erweitert werden kann. Internationale Studien und auch Studien aus Deutschland best{\"a}tigen das Potenzial des Einbezugs digitaler Maßnahmen in die therapeutische Versorgung. In diesem Beitrag werden die Ergebnisse einer qualitativen Studie pr{\"a}sentiert, in der die in der COVID-19-Krise gesammelten Erfahrungen von TherapeutInnen mit Videotherapie vorgestellt werden.}, subject = {Logop{\"a}die}, language = {de} } @article{BuschDaumRaptis, author = {Busch, Ch. and Daum, H. and Raptis, Georgios}, title = {Merkmal Iris. K{\"o}nnen diese Augen l{\"u}gen?}, series = {Spektrum der Wissenschaft}, journal = {Spektrum der Wissenschaft}, number = {7}, pages = {81 -- 82}, subject = {Biometrie}, language = {de} } @article{Raptis, author = {Raptis, Georgios}, title = {Kryptographischer Langzeitschutz}, series = {KES - The Information Security Journal}, volume = {1}, journal = {KES - The Information Security Journal}, pages = {55 -- 62}, subject = {Kryptologie}, language = {de} } @article{Raptis, author = {Raptis, Georgios}, title = {App statt Arzt ist kein gutes Motto}, series = {medizin \& technik}, journal = {medizin \& technik}, number = {2}, language = {de} } @article{SteinhauserRaptis, author = {Steinhauser, Stefanie and Raptis, Georgios}, title = {Design propositions for nudging in healthcare: Adoption of national electronic health recordsystems}, series = {Digital Health}, volume = {9}, journal = {Digital Health}, publisher = {Sage}, issn = {2055-2076}, doi = {10.1177/20552076231181208}, pages = {1 -- 12}, abstract = {Objectives: Electronic health records (EHRs) are considered important for improving efficiency and reducing costs of ahealthcare system. However, the adoption of EHR systems differs among countries and so does the way the decision to par-ticipate in EHRs is presented. Nudging is a concept that deals with influencing human behaviour within the research streamof behavioural economics. In this paper, we focus on the effects of the choice architecture on the decision for the adoption ofnational EHRs. Our study aims to link influences on human behaviour through nudging with the adoption of EHRs to inves-tigate how choice architects can facilitate the adoption of national information systems. Methods: We employ a qualitative explorative research design, namely the case study method. Using theoretical sampling,we selected four cases (i.e., countries) for our study: Estonia, Austria, the Netherlands, and Germany. We collected and ana-lyzed data from various primary and secondary sources: ethnographic observation, interviews, scientific papers, homepages,press releases, newspaper articles, technical specifications, publications from governmental bodies, and formal studies. Results: The findings from our European case studies show that designing for EHR adoption should encompass choice archi-tecture elements (i.e., defaults), technical elements (i.e., choice granularity and access transparency), and institutional ele-ments (i.e., regulations for data protection, information campaigns, and financial incentives) in combination. Conclusions: Our findings provide insights on the design of the adoption environments of large-scale, national EHR systems.Future research could estimate the magnitude of effects of the determinants.}, language = {en} } @article{Raptis, author = {Raptis, Georgios}, title = {Technischer Datenschutz in der telemedizinischen Versorgung}, series = {Der Krankenhaus-JUSTITIAR}, volume = {7}, journal = {Der Krankenhaus-JUSTITIAR}, number = {4}, pages = {105 -- 107}, abstract = {Die fortschreitende Digitalisierung des Gesundheitswesens ebnet auch den Weg einer st{\"a}rkeren Verbreitung der telemedizinischen Versorgung in Deutschland. Die Politik erleichtert diesen Weg, z.B. mit dem eHealth-Gesetz oder mit der Lockerung des "Fernbehandlungsverbots" durch den Deutschen {\"A}rztetag. Dabei wird schon aus der Definition (siehe z.B. die unten stehende Definition der AG Telemedizin) klar, dass Telemedizin keine neue medizinische Disziplin begr{\"u}ndet. Bei Telemedizin handelt es sich nur um ein technisches Werkzeug in Kombination mit geeigneten klinischen Prozessen, damit bestehende medizinische Expertise unter Einsatz von Informations- und Kommunikationstechnologien r{\"a}umliche Entfernungen oder einen zeitlichen Versatz {\"u}berbr{\"u}cken kann. Patientinnen und Patienten k{\"o}nnen also behandelt werden, auch wenn sie vom Arzt r{\"a}umlich entfernt sind.}, subject = {Telemedizin}, language = {de} } @article{Raptis, author = {Raptis, Georgios}, title = {Windows 10 und Datenschutz in der Arztpraxis}, series = {Bayerisches {\"A}rzteblatt}, journal = {Bayerisches {\"A}rzteblatt}, number = {7/8}, pages = {364}, subject = {Windows 10}, language = {de} } @article{SchenkelAlbertRaptisetal., author = {Schenkel, Johannes and Albert, J{\"u}rgen and Raptis, Georgios and Butz, Norbert}, title = {Notfalldatensatz: Bessere Unterst{\"u}tzung f{\"u}r den Arzt}, series = {Deutsches {\"A}rzteblatt}, volume = {108}, journal = {Deutsches {\"A}rzteblatt}, number = {19}, pages = {A-1046, B-864, C-864}, subject = {Elektronische Gesundheitskarte}, language = {de} } @article{SchenkelAlbertRaptisetal., author = {Schenkel, Johannes and Albert, J{\"u}rgen and Raptis, Georgios and Butz, Norbert}, title = {Notfalldatenmanagement auf der elektronischen Gesundheitskarte}, series = {e-Health}, journal = {e-Health}, editor = {Duesberg, Felix}, publisher = {medical future verlag}, address = {Solingen}, pages = {64 -- 67}, subject = {Elektronische Gesundheitskarte}, language = {de} } @article{WoltmannVolkDinzingeretal., author = {Woltmann, Lucas and Volk, Peter and Dinzinger, Michael and Gr{\"a}f, Lukas and Strasser, Sebastian and Schildgen, Johannes and Hartmann, Claudio and Lehner, Wolfgang}, title = {Data Science Meets High-Tech Manufacturing - The BTW 2021 Data Science Challenge}, series = {Datenbank-Spektrum}, volume = {45}, journal = {Datenbank-Spektrum}, publisher = {Springer Nature}, doi = {10.1007/s13222-021-00398-4}, pages = {5 -- 10}, abstract = {For its third installment, the Data Science Challenge of the 19th symposium "Database Systems for Business, Technology and Web" (BTW) of the Gesellschaft f{\"u}r Informatik (GI) tackled the problem of predictive energy management in large production facilities. For the first time, this year's challenge was organized as a cooperation between Technische Universit{\"a}t Dresden, GlobalFoundries, and ScaDS.AI Dresden/Leipzig. The Challenge's participants were given real-world production and energy data from the semiconductor manufacturer GlobalFoundries and had to solve the problem of predicting the energy consumption for production equipment. The usage of real-world data gave the participants a hands-on experience of challenges in Big Data integration and analysis. After a leaderboard-based preselection round, the accepted participants presented their approach to an expert jury and audience in a hybrid format. In this article, we give an overview of the main points of the Data Science Challenge, like organization and problem description. Additionally, the winning team presents its solution.}, language = {en} } @article{SchreierKohlert, author = {Schreier, Franz and Kohlert, Dieter}, title = {Optimized implementations of rational approximations-a case study on the Voigt and complex error function}, series = {Computer Physics Communications : an international journal for computational physics and physical chemistry}, volume = {179}, journal = {Computer Physics Communications : an international journal for computational physics and physical chemistry}, number = {7}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0010-4655}, doi = {10.1016/j.cpc.2008.04.012}, pages = {457 -- 465}, abstract = {Rational functions are frequently used as efficient yet accurate numerical approximations for real and complex valued special functions. For the complex error function , whose real part is the Voigt function , the rational approximation developed by Hui, Armstrong, and Wray [Rapid computation of the Voigt and complex error functions, J. Quant. Spectrosc. Radiat. Transfer 19 (1978) 509-516] is investigated. Various optimizations for the algorithm are discussed. In many applications, where these functions have to be calculated for a large x grid with constant y, an implementation using real arithmetic and factorization of invariant terms is especially efficient.}, language = {en} } @article{ThorScherzingerSpecht, author = {Thor, Andreas and Scherzinger, Stefanie and Specht, G{\"u}nther}, title = {Editorial}, series = {Datenbank-Spektrum}, volume = {14}, journal = {Datenbank-Spektrum}, number = {2}, publisher = {Springer}, doi = {10.1007/s13222-014-0162-1}, pages = {81 -- 84}, language = {de} } @article{DeubzerMottokHobelsberger, author = {Deubzer, Michael and Mottok, J{\"u}rgen and Hobelsberger, Martin}, title = {Profiling in Embedded Real-Time Software Systemen}, series = {Jahresr{\"u}ckblick 2008 des Bayerischen IT-Sicherheitsclusters}, journal = {Jahresr{\"u}ckblick 2008 des Bayerischen IT-Sicherheitsclusters}, pages = {13}, language = {en} } @article{KoenningWestnerStrahringer, author = {K{\"o}nning, Michael and Westner, Markus and Strahringer, Susanne}, title = {A Systematic Review of Recent Developments in IT Outsourcing Research}, series = {Information Systems Management}, volume = {36}, journal = {Information Systems Management}, number = {1}, publisher = {Taylor \& Francis}, pages = {78 -- 96}, abstract = {Incomplete conceptualization of the information technology outsourcing (ITO) literature represents a challenge for navigating extant research and engaging into purposeful academic discourse. We extend the analysis of empirical findings on determinants of ITO decisions, outcomes, and governance. We identify increasing levels of research maturity, analyze effects of 38 new independent variables, highlight contradictory findings, and observe increasing interest in emerging topics such as innovation through ITO and multisourcing.}, subject = {Outsourcing}, language = {en} } @article{KobusWestnerStrahringer, author = {Kobus, J{\"o}rn and Westner, Markus and Strahringer, Susanne}, title = {Enabling digitization by implementing Lean IT}, series = {The TQM Journal}, volume = {30}, journal = {The TQM Journal}, number = {6}, publisher = {Emerald insight}, pages = {764 -- 778}, abstract = {Purpose With the rise of digitization, IT organizations are challenged to provide efficient service delivery and offer innovative digital solutions while maintaining a constant resource capacity. To address this challenge, some IT organizations have adopted Lean Management (LM). Although LM is a standard production mode in manufacturing, it is less familiar to IT organizations. The purpose of this paper is to identify 12 lessons learned from companies who implemented LM in their IT organization (Lean IT) to free up their IT resource capacity from existing day-to-day operations so they could use it to enable their digitization strategy. Design/methodology/approach A case study of two major international companies from different industries. Data were collected from 25 structured interviews. Findings The lessons learned provide insights into how these companies implemented Lean IT, the potential outcomes they aimed for, what they did to achieve those outcomes, how they facilitated the implementation of Lean IT, and restrictions they encountered during the implementation. Research limitations/implications The findings are based on a limited range of IT organizations. Practical implications The lessons learned inform those implementing Lean IT because they explain how companies have implemented Lean IT to facilitate digitization and the benefits and pitfalls they encountered. A comparison of Lean IT and Lean Production shows that LM is transferable to IT organizations if domain specific requirements are respected. Originality/value This paper reports the unique experience of companies implementing Lean IT, which can inform other companies in a similar situation.}, subject = {Unternehmen}, language = {en} } @article{KopperWestnerStrahringer, author = {Kopper, Andreas and Westner, Markus and Strahringer, Susanne}, title = {Kontrollierte Nutzung von Schatten-IT}, series = {HMD Praxis der Wirtschaftsinformatik}, volume = {54}, journal = {HMD Praxis der Wirtschaftsinformatik}, publisher = {Springer}, doi = {10.1365/s40702-016-0286-x}, pages = {97 -- 110}, abstract = {Basierend auf einer systematischen und umfangreichen Analyse von Praxisbeitr{\"a}gen zum Thema Schatten-IT, die zwischen September 2015 und August 2016 erschienen sind, beschreibt der vorliegende Artikel Governance-Aspekte zu diesem Ph{\"a}nomen. Er erg{\"a}nzt damit vorhergehende akademische Studien. Es zeigt sich, dass unter Praktikern der Eindruck vorherrscht, dass IT-Abteilungen unter zunehmendem Druck stehen, schneller auf sich {\"a}ndernde Anforderungen aus den Fachbereichen reagieren zu m{\"u}ssen. K{\"o}nnen IT-Abteilungen diesen Erwartungen nicht entsprechen, beschaffen sich Fachbereiche und Nutzer selbst L{\"o}sungen in Form von Schatten-IT. Als m{\"o}gliche Antwort darauf kann sich die IT-Abteilung agiler organisieren und die IT-Architektur im Unternehmen modernisieren. Eine weitere M{\"o}glichkeit besteht darin, sich das innovative Potenzial von Schatten-IT zunutze zu machen und deren Umsetzung aktiv durch organisatorische und technische Maßnahmen zu unterst{\"u}tzen. IT-Sicherheitsmanagement und technische Schutzmechanismen k{\"o}nnen helfen, die so entstandenen L{\"o}sungen abzusichern und die Risiken zu minimieren. Nach vorherrschender Ansicht entwickelt sich die IT-Abteilung als Konsequenz aus all diesen Maßnahmen zu einem nutzerorientierten, internen Service-Provider und strategischen Partner f{\"u}r die Fachbereiche.}, subject = {IT-Abteilung}, language = {de} } @article{KobusWestnerStrahringer, author = {Kobus, J{\"o}rn and Westner, Markus and Strahringer, Susanne}, title = {Einf{\"u}hrung von Lean Management in IT-Organisationen}, series = {HMD Praxis der Wirtschaftsinformatik}, volume = {53}, journal = {HMD Praxis der Wirtschaftsinformatik}, number = {6}, pages = {879 -- 893}, abstract = {In der Produktion gilt „Lean Management" als einer der de-facto Standardmanagementans{\"a}tze. Lean Management in IT-Organisationen (Lean IT) ist dahingegen in der Praxis weniger verbreitet und in der Wissenschaft kaum erforscht. Dieser Beitrag aggregiert und erweitert die Ergebnisse mehrerer Forschungsarbeiten. Dabei werden vorrangig zwei Aspekte diskutiert: (1) Ein m{\"o}gliches Einf{\"u}hrungsmodell f{\"u}r Lean IT. Dieses verkn{\"u}pft f{\"u}nf Rollen (Sponsor, Programmleiter, Navigator, Linienf{\"u}hrungskraft und Linienexperte) mit vier Phasen (Vorbereitung, Analyse, Gestaltung und Implementierung). (2) Besondere Herausforderungen f{\"u}r Linienf{\"u}hrungskr{\"a}fte, die aufgrund der „bottom up"-Ausrichtung bei Lean-IT-Einf{\"u}hrungen stark gefordert werden. Neben einer klaren Vision f{\"u}r die Organisationseinheit und dem Verst{\"a}ndnis, an welcher Stelle Lean IT die Organisationseinheit konkret unterst{\"u}tzen kann, ben{\"o}tigen sie Offenheit, Ver{\"a}nderungswillen und die Bereitschaft Verantwortung an Mitarbeiter zu delegieren. Außerdem sollten sie {\"u}ber ein ausreichendes Zeitbudget f{\"u}r die Einf{\"u}hrung verf{\"u}gen, um ihrer gestaltenden und qualit{\"a}tssichernden Funktion nachkommen zu k{\"o}nnen.}, subject = {Betriebliches Informationssystem}, language = {de} } @article{StrasserWestner, author = {Strasser, Artur and Westner, Markus}, title = {Information systems offshoring}, series = {Journal of Information Technology Management}, volume = {26}, journal = {Journal of Information Technology Management}, number = {2}, pages = {70 -- 142}, abstract = {An increasing amount of IS offshoring research has been published during the last four years. This paper presents a comprehensive view of the field of study from a managerial point of view. It provides a consolidated view of the field of study between 2010 and 2013 based on a manual search comprising 69 selected journals and 9 conferences, as well as a search using 6 journal databases. The literature review ensures continuity of research by connecting to a comprehensive literature analysis covering the years 1999 to 2009. This way it consolidates and critically reflects the state of the research of the last 14 years. Overall, we compiled 95 relevant publications originating from leading IS journals and IS conference proceedings. The results indicate that IS offshoring research is largely non-theory based, using almost entirely empirical data and interpretive research methods and -to a smaller extent -positivist research designs. The ISO research of the last 14 years focuses on the implementation stages "how" and "outcome" while the pre-implementation-stages "why", "what", and "which" are comparatively sparsely researched. Future studies should apply a more theory-driven approach with a greater attention on pre-implementation aspects of information systems offshoring. In addition, future research should investigate the special nature of near- and onshoring, captive offshoring as well asagile (project) management techniques suitable for ISO.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{BaryWestner, author = {Bary, Benedikt von and Westner, Markus}, title = {Information Systems Backsourcing}, series = {Journal of Information Technology Management}, volume = {29}, journal = {Journal of Information Technology Management}, number = {1}, publisher = {University of Tehran}, pages = {62 -- 78}, abstract = {Information systems backsourcing describes the transferof previously outsourced activities, assets, or personnel back to the originating companyto regain ownership and control. While there is much research on information systems outsourcing, the topic of backsourcing information systemsis still an emerging research area. Therefore, ourpaper aims to explore and synthesizethe existing literature on information systemsbacksourcing, since there is no exhaustiveliteraturereview of the state of the research to our knowledge available yet. In this paper, wecreate a framework to structure the existing research along the overallbacksourcing process. We identifydifferent motivators, such asexpectation gaps, orinternal and external organizational changes, leading towards a backsourcing decision, and factors positively or negatively influencing this decision. Additionally, we derive implementation success factors based on the existing literature to guide companies through the backsourcing process.We also differentiate the term backsourcing from related, sometimes synonymously used terms, by emphasizing the change of ownership back to the company of originas the main criterion.Additionally, we discuss opportunities for future research in the field of information systems backsourcing.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{KobusWestnerStrahringer, author = {Kobus, J{\"o}rn and Westner, Markus and Strahringer, Susanne}, title = {Change management lessons learned for Lean IT implementations}, series = {International Journal of Information Systems and Project Management}, volume = {5}, journal = {International Journal of Information Systems and Project Management}, number = {1}, pages = {47 -- 60}, abstract = {Lean Management is a standard production mode that has been familiar to production organizations for several decades. To date, however, academic literature has presented surprisingly little information about the application of Lean Management in Information Technology (IT) organizations, or what is called Lean IT. Drawing upon an empirical qualitative case study of the IT departments of two multinational companies, in this paper we identify change management lessons learned for Lean IT implementations, as well as seven characteristics of a corresponding change management approach. As an extension of our work, researchers should validate and expand our initial findings, preferably in a quantitative setting.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{WestnerStrahringer, author = {Westner, Markus and Strahringer, Susanne}, title = {Determinants of success in IS offshoring projects}, series = {Information \& Management}, volume = {47}, journal = {Information \& Management}, number = {5-6}, pages = {291 -- 299}, abstract = {High labor cost in western countries allows cost savings by companies engaging in IS offshoring. However, studies worldwide indicate that a large number of companies that engaged in IS offshoring are not satisfied with the outcome. Our study examined the determinants of IS offshore project success: We developed a model and empirically tested it with data collected from 304 experts who reported on projects offshored from Germany to a wide range of near and distant countries. The model posited a direct effect of offshoring expertise and trust in offshore service provider (OSP) on success, as well as an indirect effect mediated by project suitability, knowledge transfer, and liaison quality. An analysis using partial least squares (PLSs) provided significant support for almost all these relationships. However, it showed that offshoring expertise played a minor role in explaining success and the mediating constructs. Trust in OSP had a small direct effect on success and a medium to large effect on the mediating constructs. Project suitability, knowledge transfer, and liaison quality all had small direct effects on success.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{WestnerStrahringer, author = {Westner, Markus and Strahringer, Susanne}, title = {The current state of IS offshoring in Germany}, series = {Journal of Information Technology Management}, volume = {21}, journal = {Journal of Information Technology Management}, number = {1}, pages = {49 -- 70}, abstract = {This paper empirically examines the current state of the IS offshoring phenomenon in Germany regarding project characteristics and success patterns. Relying on a sample of 304 projects conducted at various industry sectors and companies, results show that IS offshoring primarily occurs in sectors Telecommunications and IT at large corporations. Cost reduction is the main reason for going offshore and offshore projects are executed as part of a larger program at companies. Noticeably, most projects are delivered from India. Additionally, neither captive offshoring nor offshore outsourcing dominates as a de-livery option. Comparing different project subgroups regarding project success, the results reveal that projects delivered by an internal or partially owned service provider are more successful. Other project characteristics such as a project's embedded-ness in a larger offshoring program, a project's size, or a project's offshoring degree in terms of relatively offshored labor hours show few significant differences. The paper addresses the paucity of empirical research on the current state of the IS offshoring phenomenon in Germany.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{WestnerStrahringer, author = {Westner, Markus and Strahringer, Susanne}, title = {Evaluation criteria for selecting offshoring candidates}, series = {Journal of Information Technology Management}, volume = {19}, journal = {Journal of Information Technology Management}, number = {4}, pages = {16 -- 34}, abstract = {The identification of suitable applications or projects is a main initial step in any software development or maintenance related IS offshoring arrangement. This paper examines evaluation criteria and their importance for selecting application or project candidates for offshoring. Based on a literature analysis and interviews with 47 experts from 36 different German companies describing 64 case examples, we find that in contrast to the literature, "size", "codification", and "language" are perceived as important selection criteria by experts. Case examples additionally show that "business specificity" seems to be a main reason for application or project failures, that "business criticality" appears to be less important than suggested by the literature, and that adequate "size" might be a necessary prerequisite, but seems not to be a sufficient criterion for an application's or project's suitability for offshoring. These differences in comparison to findings from the literature may be explained by cultural and language differences.}, subject = {Betriebliches Informationssystem}, language = {en} } @article{StrahringerWestnerBary, author = {Strahringer, Susanne and Westner, Markus and Bary, Benedikt von}, title = {IT-Backsourcing}, series = {Das Wirtschaftsstudium : wisu}, journal = {Das Wirtschaftsstudium : wisu}, number = {6}, publisher = {Lange ; Mohr}, address = {D{\"u}sseldorf ; T{\"u}bingen}, pages = {702 -- 706}, abstract = {The importance of information systems (IS) for companies has grown rapidly over the recent years. For example, companies from various industries are focusing their efforts to digitize business models, to adopt agile forms of collaboration, and to leverage automation of routine tasks. This forces companies to review their IS sourcing strategies and to potentially consider alternatives for current outsourcing contracts. One potential option could be to backsource IS services currently performed by external vendors. Based on empirical observations, previous academics defined it as the repatriation of all assets, activities, and skills needed to perform IS services back in-house, which had been outsourced previously to one or multiple vendors. The distinctive characteristic of backsourcing is the change in ownership back to the mother organization. This distinguishes the term backsourcing from similar terms, e.g., backshoring, reshoring, or relocating, which rather focus on the change in location of the service delivery. At the initial sourcing decision, the strategy to outsource an IS service was considered most promising. However, certain developments both inside the company, but also on a broader industry level may lead to a re-evaluation of the situation and thus to an adjustment of the original sourcing strategy. Over the last years, there has been a strong increase in cloud-based services and a shift towards the deployment of standardized, almost "industrialized" applications as services. Before, large companies leveraged their size in realizing economies of scale within their sourcing volumes. The raise of cloud computing as well as standardization of service delivery decreased those benefits and led towards a decline in large outsourcing contracts across a variety of services and a growth of multi-sourcing of individual IS services from the respective "best-in-breed" vendors for shorter time periods. Besides sourcing the best vendor for each service, companies that implement multi-sourcing strategies additionally aim for cost benefits due to an increased competition between vendors, and an increase in agility and adaptability. At the same time, a move towards multi-sourcing strategies with shorter contract durations leads to an increase in so-called "second generation sourcing decisions", namely whether to continue outsourcing a respective service or to bring the service back in-house. Given the developments within the IS environment, this research projects aims at understanding why IS services are backsourced and which factors influence a company's decision to backsource an IS service.}, subject = {Betriebliches Informationssystem}, language = {de} } @article{StrahringerWestnerKobus, author = {Strahringer, Susanne and Westner, Markus and Kobus, J{\"o}rn}, title = {Lean IT}, series = {WISU - Das Wirtschaftsstudium}, journal = {WISU - Das Wirtschaftsstudium}, number = {1}, pages = {87 -- 92}, subject = {Informationstechnik}, language = {de} } @article{WestnerStrasser, author = {Westner, Markus and Strasser, Artur}, title = {IT-Offshoring}, series = {WISU - Das Wirtschaftsstudium}, journal = {WISU - Das Wirtschaftsstudium}, number = {5}, pages = {650 -- 652}, subject = {Informationsmanagement}, language = {de} } @article{HummelMottokEgenetal., author = {Hummel, M. and Mottok, J{\"u}rgen and Egen, R. and Schiller, Frank and Mattes, T. and Blum, M. and Druckstein, F.}, title = {Generische Safety-Architektur f{\"u}r Kfz-Software}, series = {Spektrum, das Magazin der Hochschule Regensburg}, journal = {Spektrum, das Magazin der Hochschule Regensburg}, address = {Regensburg}, organization = {Hochschule f{\"u}r Angewandte Wissenschaften Regensburg}, language = {de} } @article{SchillerMottokBlumetal., author = {Schiller, Frank and Mottok, J{\"u}rgen and Blum, M. and Duckstein, F. and Egen, R. and Hummel, M. and Mattes, T.}, title = {Generische Safety-Architektur f{\"u}r KFZ-Software}, series = {Hanser automotive}, journal = {Hanser automotive}, pages = {52 -- 54}, language = {de} } @article{WeberRinkeAlwardt, author = {Weber, Karsten and Rinke, Bernhard and Alwardt, Christian}, title = {Dr. Seltsam, oder wie ich lernte, die Drohne zu lieben}, series = {TATuP - Zeitschrift f{\"u}r Technikfolgenabsch{\"a}tzung in Theorie und Praxis}, volume = {27}, journal = {TATuP - Zeitschrift f{\"u}r Technikfolgenabsch{\"a}tzung in Theorie und Praxis}, number = {3}, publisher = {Institute for Technology Assessment and Systems Analysis / KIT}, doi = {10.14512/tatup.27.3.11}, pages = {11 -- 13}, abstract = {Drohnen werden inzwischen in vielen und sehr unterschiedlichen Kon-texten verwendet. Aus dem Blickwinkel der Technikfolgenabsch{\"a}tzung (TA) scheint es daher sinnvoll, den Umfang der momentanen und zu-k{\"u}nftigen Nutzung von Drohnen und daraus resultierende Implikatio-nen n{\"a}her zu beleuchten und eine Bestandsaufnahme durchzuf{\"u}hren. Dar{\"u}ber hinaus sollen die voraussichtlichen Pfade der weiteren Tech-nikentwicklung, relevante Akteure und deren Interessenslage sowie zu-k{\"u}nftige Anwendungspotenziale und Einsatzfelder analysiert werden}, language = {de} } @article{WeberKleinePallasetal., author = {Weber, Karsten and Kleine, Nadine and Pallas, Frank and Ulbricht, Max-R.}, title = {Technik zur Unterst{\"u}tzung von Citizen Science und Open Science}, series = {TATuP - Zeitschrift f{\"u}r Technikfolgenabsch{\"a}tzung in Theorie und Praxis}, volume = {26}, journal = {TATuP - Zeitschrift f{\"u}r Technikfolgenabsch{\"a}tzung in Theorie und Praxis}, number = {1/2}, doi = {10.14512/tatup.26.1-2.25}, pages = {25 -- 30}, abstract = {If citizens actively participate in the process of collecting empirical data, as a key element of empirically oriented scientific projects, this can be seen as a contribution to an open and citizen-oriented science. Such participation can be supported by providing technical tools. The paper therefore presents examples of participatory sensing as the provision of affordable sensors for measuring environmental parameters as well as wearable technologies for recording quantified vital data and physiological states. Conceptually, the provision of data collected with these tools can be understood as a commons - with all opportunities and risks associated with such goods. After describing examples of participatory sensing and wearable technologies, the authors identify potential challenges and outline technical and organizational approaches to solve them.}, language = {de} } @article{Weber, author = {Weber, Karsten}, title = {Technik in der Pflege}, series = {Evangelium und Wissenschaft}, volume = {39}, journal = {Evangelium und Wissenschaft}, number = {1}, language = {de} } @article{KopperWestnerStrahringer, author = {Kopper, Andreas and Westner, Markus and Strahringer, Susanne}, title = {From Shadow IT to Business-managed IT: A qualitative comparative analysis to determine configurations for successful management of IT by business entities}, series = {Information Systems and e-Business Management}, volume = {18}, journal = {Information Systems and e-Business Management}, number = {2}, doi = {10.1007/s10257-020-00472-6}, pages = {209 -- 257}, abstract = {Shadow IT describes covert/hidden IT systems that are managed by business entities themselves. Additionally, there are also overt forms in practice, so-called Business-managed IT, which share most of the characteristics of Shadow IT. To better understand this phenomenon, we interviewed 29 executive IT managers about positive and negative cases of Shadow IT and Business-managed IT. By applying qualitative comparative analysis (QCA), we derived four conditions that characterize these cases: Aligned, local, simple, and volatile. The results show that there are three sufficient configurations of conditions that lead to a positive outcome; one of them even encompasses Shadow IT. The most important solution indicates that IT systems managed by business entities are viewed as being positive if they are aligned with the IT department and limited to local requirements. This allows to balance local responsiveness to changing requirements and global standardization. In contrast, IT systems that are not aligned and permanent (and either organization-wide or simple) are consistently considered as negative. Our study is the first empirical quantitative-qualitative study to shed light on the success and failure of Shadow IT and Business-managed IT.}, subject = {Informationsmanagement}, language = {en} } @article{LoiChristenKleineetal., author = {Loi, Michele and Christen, Markus and Kleine, Nadine and Weber, Karsten}, title = {Cybersecurity in health}, series = {Journal of Information, Communication \& Ethics in Society}, volume = {17}, journal = {Journal of Information, Communication \& Ethics in Society}, number = {2}, doi = {10.1108/JICES-12-2018-0095}, pages = {229 -- 245}, abstract = {Purpose Cybersecurity in healthcare has become an urgent matter in recent years due to various malicious attacks on hospitals and other parts of the healthcare infrastructure. The purpose of this paper is to provide an outline of how core values of the health systems, such as the principles of biomedical ethics, are in a supportive or conflicting relation to cybersecurity. Design/methodology/approach This paper claims that it is possible to map the desiderata relevant to cybersecurity onto the four principles of medical ethics, i.e. beneficence, non-maleficence, autonomy and justice, and explore value conflicts in that way. Findings With respect to the question of how these principles should be balanced, there are reasons to think that the priority of autonomy relative to beneficence and non-maleficence in contemporary medical ethics could be extended to value conflicts in health-related cybersecurity. Research limitations/implications However, the tension between autonomy and justice, which relates to the desideratum of usability of information and communication technology systems, cannot be ignored even if one assumes that respect for autonomy should take priority over other moral concerns. Originality/value In terms of value conflicts, most discussions in healthcare deal with the conflict of balancing efficiency and privacy given the sensible nature of health information. In this paper, the authors provide a broader and more detailed outline.}, language = {en} } @article{Weber, author = {Weber, Karsten}, title = {Computers as omnipotent instruments of power}, series = {The ORBIT Journal - An Online Journal for Responsible Research and Innovation in ICT}, volume = {2}, journal = {The ORBIT Journal - An Online Journal for Responsible Research and Innovation in ICT}, number = {1}, publisher = {Elsevier}, doi = {10.29297/orbit.v2i1.97}, pages = {1 -- 19}, abstract = {With examples concerning the development and dissemination of computer technology in the Soviet Union, the U.S., and other Western countries it shall be demonstrated that computer development on the one hand and social change as well as changes in policy making and administration on the other hand are mingled with each other without a clear direction of causation being discernible.It also shall be shown that perceived social and political threats imposed by early computer technology sometimes actually helped to stop or at least slow down social change. One conclusion that can be drawn from the case studies described for RRI is that the conscious steering of innovations fails because of diffuse and uncoordinated resistance from very different stakeholders. The case studies also suggest that the effectiveness of RRI might be rather limited.}, language = {en} } @article{Weber, author = {Weber, Karsten}, title = {The Next Step: Privacy Invasions by Biometrics and ICT Implants}, series = {Ubiquity. An ACM IT Magazine and Forum}, volume = {7}, journal = {Ubiquity. An ACM IT Magazine and Forum}, number = {45}, doi = {10.1145/1195937.1187567}, language = {en} } @article{Mottok, author = {Mottok, J{\"u}rgen}, title = {Aktuelle Forschungsergebnisse aus dem "Laboratory for Safe and Secure Systems"(LaS3)}, series = {Jahresr{\"u}ckblick 2008 des Bayerischen IT-Sicherheitsclusters}, journal = {Jahresr{\"u}ckblick 2008 des Bayerischen IT-Sicherheitsclusters}, pages = {13 -- 15}, language = {de} } @article{HartigHabermannMottok, author = {Hartig, Wolfgang and Habermann, Albert and Mottok, J{\"u}rgen}, title = {Mehr Qualit{\"a}t durch modellbasiertes Testen}, series = {Elektronik automotive 3}, journal = {Elektronik automotive 3}, pages = {32 -- 35}, language = {de} } @article{HartigHabermannMottok, author = {Hartig, Wolfgang and Habermann, Albert and Mottok, J{\"u}rgen}, title = {Model-based testing for better quality}, series = {Vector, Technicle Article}, journal = {Vector, Technicle Article}, language = {en} }