TY - JOUR A1 - Könning, Michael A1 - Westner, Markus A1 - Strahringer, Susanne T1 - A Systematic Review of Recent Developments in IT Outsourcing Research JF - Information Systems Management N2 - 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. KW - Outsourcing KW - Informationstechnik KW - Literaturbericht KW - Information Technology KW - Outsourcing KW - Literature Review KW - Sourcing outcomes KW - Sourcing decisions Y1 - 2019 UR - https://doi.org/10.1080/10580530.2018.1553650 VL - 36 IS - 1 SP - 78 EP - 96 PB - Taylor & Francis ER - TY - CHAP A1 - Krämer, Stefan A1 - Simsek, Erol A1 - Braun, Jürgen A1 - Deubzer, Michael A1 - Stingl, Armin A1 - Hobelsberger, Martin A1 - Mottok, Jürgen T1 - Mut zu Fehlern, um die Qualität zu steigern – Fault-Injection zur Steigerung der Zuverlässigkeit T2 - Tagungsband, 6th Embedded Software Engineering, Kongress 2013, 2. bis 6. Dezember 2013, Sindelfingen Y1 - 2013 SN - 978-3-8343-2408-5 SP - 577 EP - 585 ER - TY - CHAP A1 - Sailer, Andreas A1 - Schmidhuber, Stefan A1 - Deubzer, Michael A1 - Hobelsberger, Martin A1 - Mottok, Jürgen T1 - Requirements engineering for a continuous design flow and methodology T2 - 2nd Applied Research Conference 2012 (ARC 2012) 25./26. June 2012, Nuremberg Y1 - 2012 SN - 978-3-8440-1093-0 SP - 76 EP - 79 PB - Shaker CY - Aachen ER - TY - CHAP A1 - Schmidhuber, Stefan A1 - Sailer, Andreas A1 - Deubzer, Michael A1 - Hobelsberger, Martin A1 - Mottok, Jürgen T1 - Overview of the itea2-project amalthea T2 - 2nd Applied Research Conference 2012 (ARC 2012) 25./26. June 2012, Nuremberg Y1 - 2012 SN - 978-3-8440-1093-0 SP - 60 EP - 62 PB - Shaker CY - Aachen ER - TY - JOUR A1 - Kobus, Jörn A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Enabling digitization by implementing Lean IT BT - Lessons learned JF - The TQM Journal N2 - 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. KW - Digitization KW - IT management KW - IT organization KW - Lean management KW - Unternehmen KW - Informationstechnik KW - Lean Management KW - Digitalisierung Y1 - 2018 UR - https://doi.org/10.1108/TQM-02-2018-0026 VL - 30 IS - 6 SP - 764 EP - 778 PB - Emerald insight ER - TY - JOUR A1 - Kopper, Andreas A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Kontrollierte Nutzung von Schatten-IT JF - HMD Praxis der Wirtschaftsinformatik N2 - Basierend auf einer systematischen und umfangreichen Analyse von Praxisbeiträgen zum Thema Schatten-IT, die zwischen September 2015 und August 2016 erschienen sind, beschreibt der vorliegende Artikel Governance-Aspekte zu diesem Phänomen. Er ergänzt damit vorhergehende akademische Studien. Es zeigt sich, dass unter Praktikern der Eindruck vorherrscht, dass IT-Abteilungen unter zunehmendem Druck stehen, schneller auf sich ändernde Anforderungen aus den Fachbereichen reagieren zu müssen. Können IT-Abteilungen diesen Erwartungen nicht entsprechen, beschaffen sich Fachbereiche und Nutzer selbst Lösungen in Form von Schatten-IT. Als mögliche Antwort darauf kann sich die IT-Abteilung agiler organisieren und die IT-Architektur im Unternehmen modernisieren. Eine weitere Möglichkeit besteht darin, sich das innovative Potenzial von Schatten-IT zunutze zu machen und deren Umsetzung aktiv durch organisatorische und technische Maßnahmen zu unterstützen. IT-Sicherheitsmanagement und technische Schutzmechanismen können helfen, die so entstandenen Lösungen 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 für die Fachbereiche. T2 - Controlled Use of Shadow IT KW - Schatten-IT KW - IT-Governance KW - Agilität KW - IT-Sicherheit KW - IT-Abteilung KW - Corporate Governance KW - Agilität KW - Datensicherung Y1 - 2017 U6 - https://doi.org/10.1365/s40702-016-0286-x VL - 54 SP - 97 EP - 110 PB - Springer ER - TY - JOUR A1 - Kobus, Jörn A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Einführung von Lean Management in IT-Organisationen JF - HMD Praxis der Wirtschaftsinformatik N2 - In der Produktion gilt „Lean Management“ als einer der de-facto Standardmanagementansätze. 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 mögliches Einführungsmodell für Lean IT. Dieses verknüpft fünf Rollen (Sponsor, Programmleiter, Navigator, Linienführungskraft und Linienexperte) mit vier Phasen (Vorbereitung, Analyse, Gestaltung und Implementierung). (2) Besondere Herausforderungen für Linienführungskräfte, die aufgrund der „bottom up“-Ausrichtung bei Lean-IT-Einführungen stark gefordert werden. Neben einer klaren Vision für die Organisationseinheit und dem Verständnis, an welcher Stelle Lean IT die Organisationseinheit konkret unterstützen kann, benötigen sie Offenheit, Veränderungswillen und die Bereitschaft Verantwortung an Mitarbeiter zu delegieren. Außerdem sollten sie über ein ausreichendes Zeitbudget für die Einführung verfügen, um ihrer gestaltenden und qualitätssichernden Funktion nachkommen zu können. KW - Betriebliches Informationssystem KW - Lean Management KW - Lean IT KW - IT-Industrialisierung KW - Lean Management KW - IT-Effizienzprogramme KW - Einführungsmodell Y1 - 2016 UR - https://link.springer.com/article/10.1365/s40702-016-0266-1 VL - 53 IS - 6 SP - 879 EP - 893 ER - TY - JOUR A1 - Strasser, Artur A1 - Westner, Markus T1 - Information systems offshoring BT - Results of a systematic literature review JF - Journal of Information Technology Management N2 - 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. KW - Betriebliches Informationssystem KW - Offshoring KW - Literaturbericht KW - Offshoring KW - Nearshoring KW - Information systems KW - Information technology KW - Literature review Y1 - 2015 UR - http://jitm.ubalt.edu/XXVI-2/article5.pdf VL - 26 IS - 2 SP - 70 EP - 142 ER - TY - JOUR A1 - Bary, Benedikt von A1 - Westner, Markus T1 - Information Systems Backsourcing BT - A Literature Review JF - Journal of Information Technology Management N2 - 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. KW - Betriebliches Informationssystem KW - Insourcing KW - Literaturbericht KW - Backsourcing KW - Backshoring KW - Reshoring KW - Inshoring KW - Information systems KW - Information technology KW - Literature review Y1 - 2018 UR - http://jitm.ubalt.edu/XXIX-1/article4.pdf VL - 29 IS - 1 SP - 62 EP - 78 PB - University of Tehran ER - TY - JOUR A1 - Kobus, Jörn A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Change management lessons learned for Lean IT implementations JF - International Journal of Information Systems and Project Management N2 - 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. KW - Betriebliches Informationssystem KW - Lean Management KW - Fallstudiensammlung KW - Lean Management KW - Lean IT KW - Implementation KW - Case study KW - Lessons learned Y1 - 2017 UR - https://doi.org/10.12821/ijispm050103 VL - 5 IS - 1 SP - 47 EP - 60 ER - TY - CHAP A1 - Könning, Michael A1 - Heinrich, Kai A1 - Leyh, Christian A1 - Westner, Markus T1 - A quantitative analysis of culture-induced differences in pivotal IT outsourcing contract features T2 - Proceedings of the 27th European Conference on Information Systems (ECIS 2019): Stockholm & Uppsala, Sweden, June 8-14 N2 - More than 30 years after its first implementation, IT outsourcing (ITO) is unanimously considered a critical component of corporate strategy for private and public institutions alike. While implementations of ITO around the world share some common characteristics like typical reasons for outsourcing, key success factors, or dimensions along which they can be classified, extant research also points to regional differences. However, research on this topic, specifically regarding pivotal contract features like contract value, contract length, or pricing methods, is still in its infancy, and quantitative analyses on the subject are particularly scarce. We address this research gap by analyzing data on 14,917 ITO contracts closed between 2007 and 2017 through the lens of cultural regions and three statistical methods. The contribution of our paper is threefold. First, our descriptive analysis points to globally decreasing contract lengths and contract values, confirming previous studies and practice reports. Second, an ANOVA with independent post-hoc testing provides quantitative supportfor the degree of dissimilarity among individual regions in pivotal ITO contract features. Finally, our quantitative replication of a previous study identifies culture-induced regional differences between USA and Japan regarding the effect of influence factors on ITO contract features. KW - IT Sourcing KW - IT Outsourcing KW - Sourcing Strategy KW - Contract Design KW - Cultural Regions KW - Betriebliches Informationssytem KW - Outsourcing KW - Vertrag KW - Kultur Y1 - 2019 UR - https://aisel.aisnet.org/cgi/viewcontent.cgi?article=1115&context=ecis2019_rp SP - 1 EP - 15 ER - TY - JOUR A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Determinants of success in IS offshoring projects BT - Results from an empirical study of German companies JF - Information & Management N2 - 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. KW - Betriebliches Informationssystem KW - Offshoring KW - Wissensmanagement KW - Qualitätsmanagement KW - Information systems offshoring KW - Offshore project success KW - Project suitability KW - Knowledge transfer KW - Liaison quality KW - Offshoring expertise KW - Trust in offshore service provider KW - Partial least squares Y1 - 2010 UR - https://doi.org/10.1016/j.im.2010.06.003 VL - 47 IS - 5-6 SP - 291 EP - 299 ER - TY - JOUR A1 - Westner, Markus A1 - Strahringer, Susanne T1 - The current state of IS offshoring in Germany BT - Project characteristics and success patterns JF - Journal of Information Technology Management N2 - 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. KW - Offshoring KW - Nearshoring KW - Information systems sourcing KW - Outcome KW - Project success KW - Success factor KW - Betriebliches Informationssystem KW - Offfshoring Y1 - 2010 UR - http://jitm.ubalt.edu/XXI-1/article4.pdf VL - 21 IS - 1 SP - 49 EP - 70 ER - TY - JOUR A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Evaluation criteria for selecting offshoring candidates BT - An analysis of practices in German businesses JF - Journal of Information Technology Management N2 - 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. KW - Offshoring KW - Nearshoring KW - Outsourcing KW - What to offshore KW - Selection criteria KW - Information systems KW - Betriebliches Informationssystem KW - Offshoring KW - Projekt KW - Evaluation Y1 - 2008 UR - http://jitm.ubalt.edu/XIX-4/article2.pdf VL - 19 IS - 4 SP - 16 EP - 34 ER - TY - CHAP A1 - Wulf, Frederik A1 - Strahringer, Susanne A1 - Westner, Markus T1 - Information security risks, benefits, and mitigation measures in cloud sourcing T2 - Proceedings of the IEEE 21th Conference on Business Informatics (CBI): 2019, Moscow, Russia N2 - This paper develops a categorization of cloud security risks, elaborates how they impact information security, and discusses potential security benefits from cloud sourcing. This review integrates the literature on information systems and computer science to summarize managerial and technological mitigation measures that enhance cloud security. The analysis uncovers gaps regarding the empirical investigation of security considerations in the corporate decision-making process. Specifically, the micro level of how security comes into play in the decision-making process and whether mitigation measures proposed by scholars are practically feasible requires further investigation. Furthermore, the macro level, how stakeholders perceive cloud sourcing, is not yet well understood. KW - Cloud Computing KW - Security KW - Risks KW - Mitigation KW - Cloud Computing KW - Datensicherheit Y1 - 2019 UR - 10.1109/CBI.2019.00036 SP - 258 EP - 267 ER - TY - CHAP A1 - Bary, Benedikt von A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Do researchers investigate what practitioners deem relevant? BT - Gaps between research and practice in the field of information systems backsourcing T2 - Proceedings of the 20th IEEE International Conference on Business Informatics (IEEE CBI 2018): Vienna, Austria, 11-14 July N2 - There is a common understanding amongst academics that information systems (IS) research sometimes has limited relevance for practitioners. This can be explained by the fact that research lags behind the fast moving IS environment, has limited practical applicability and is hard to access. We have focused on the research area of IS backsourcing, and analyzed practitioner literature to increase our understanding of topics of interest for practitioners, to determine a potential gap between academic and practitioner literature, and to identify future research directions in this field. We observed that most publications are either news or background articles, focusing on describing backsourcing cases. Additionally, we identified four recurring themes, namely reasons for backsourcing, presentation of survey results, discussion of industry trends, and backsourcing success stories. The main reasons identified to trigger backsourcing decisions are cost savings, quality improvements, and increasing control and flexibility. By comparing our findings with academic literature on IS backsourcing, we conclude that generally both literature types cover similar topics. However, researchers have a more formulative or interpretive focus than the often descriptive practitioner literature. Academic literature also examines a broader range of topics, while practitioner literature has a narrower focus. Additionally, we observe one difference regarding applied terminology: while researchers employ the term backsourcing, practitioners mostly use back in-house or insourcing. Our paper contributes to facilitating the exchange between academics and practitioners, presents topics to consider when aiming to increase practical relevance and provides researchers with concrete directions for future research within the field of IS backsourcing. KW - Betriebliches Informationssystem KW - Backsourcing KW - Anwendung KW - Literaturbericht KW - Information systems KW - Backsourcing KW - Practical applicability Y1 - 2018 U6 - https://doi.org/10.1109/CBI.2018.00014 SP - 40 EP - 49 ER - TY - CHAP A1 - Kobus, Jörn A1 - Westner, Markus T1 - Ranking-type delphi studies in IS research BT - step-by-step guide and analytical extension T2 - Proceedings of the 9th IADIS International Conference Information Systems, Vilamoura, Portugal, 9-11 April N2 - Ranking-type Delphi is a frequently used method in IS research. However, besides several studies investigating a rigorous application of ranking-type Delphi as a research method, a comprehensive and precise step-by-step guide on how to conduct a rigorous ranking-type Delphi study in IS research is currently missing. In addition, a common critic of Delphi studies in general is that it is unclear if there is indeed authentic consensus of the panelists, or if panelists only agree because of other reasons (e.g. acquiescence bias or tiredness to disagreement after several rounds). This also applies to ranking-type Delphi studies. Therefore, this study aims to (1) Provide a rigorous step-by-step guide to conduct ranking-type Delphi studies through synthesizing results of existing research and (2) Offer an analytical extension to the ranking-type Delphi method by introducing Best/Worst Scaling, which originated in Marketing and Consumer Behavior research. A guiding example is introduced to increase comprehensibility of the proposals. Future research needs to validate the step-by-step guide in an empirical setting as well as test the suitability of Best/Worst Scaling within described research contexts. KW - Delphi KW - Best/Worst Scaling KW - Maximum-Difference-Scaling KW - MaxDiff KW - Delphi-Technik Y1 - 2016 UR - http://www.iadisportal.org/digital-library/ranking-type-delphi-studies-in-is-research-step-by-step-guide-and-analytical-extension SP - 28 EP - 38 ER - TY - CHAP A1 - Westner, Markus A1 - Skelton, David A1 - Tinat, Johannes T1 - Enhancing students’ IS offshoring capabilities BT - an international blended teaching concept T2 - Proceedings of the 7th Annual Conference of Computing and Information Technology Research and Education New Zealand (CITRENZ 2016), Wellington, New Zealand, July 11-13 N2 - An appreciation of globalisation issues by information systems (IS) graduates is a growing requirement of organisations with global reach. This paper discusses the planning of a joint course to be delivered online and face to face by two lecturers representing two tertiary institutes in Germany and New Zealand respectively. The IS offshoring content of the course is relatively unique and aspects of globalisation will be demonstrated through the dual country delivery of the course. The two lecturers involved have spent time lecturing and studying in their global partner’s country and tertiary institutes and so this joint delivery method is likely to also strengthen cultural ties between the two participating institutions including the students involved. Further research goals and issues are discussed for post-delivery of this dual country blended course. This paper provides a basis for this concept to be evaluated in further research. KW - Globalisation KW - Offshoring KW - Joint delivery KW - Blended global courses KW - International student KW - Informatikstudium KW - Integriertes Lernen KW - Internationale Kooperation KW - Deutschland KW - Neuseeland Y1 - 2016 UR - https://www.citrenz.ac.nz/conferences/2016/pdf/2016CITRENZ_1_Westner_IntBlended_15-2.pdf ER - TY - CHAP A1 - Kobus, Jörn A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Lean Management of IT Organizations BT - a Perspective of IT Slack Theory T2 - Proceedings of the 37th International Conference on Information Systems (ICIS 2016), Dublin, N2 - Lean Management has been successfully implemented in production organizations since several decades. The study at hand investigates the implementation of Lean Management to IT organizations (Lean IT). The study offers three contributions: First, it explains on a conceptual level how Lean Management can be transferred from production to IT organizations (philosophy, principles, tools). Second, it provides a theoretical perspective on why Lean IT can be beneficial for IT organizations (IT Slack theory). Third, it provides insights to the stated research questions (three benefits and three propositions) from an initial case study of an internal IT service provider for a large international insurance company (> US$25 Billion revenue; >20,000 employees; active in >120 countries) and lays out the research methodology and potential focus areas for further studies. KW - Lean Management KW - Lean IT KW - IT Slack theory KW - Implementation KW - Application development and maintenance KW - Lean Management KW - Informationstechnik Y1 - 2016 UR - https://aisel.aisnet.org/icis2016/ManagingIS/Presentations/1/ SP - 1 EP - 12 ER - TY - CHAP A1 - Kopper, Andreas A1 - Westner, Markus T1 - Towards a Taxonomy for Shadow IT T2 - Proceedings of the 22nd Americas Conference on Information Systems (AMCIS 2016), San Diego, August 11-14 N2 - In a comprehensive literature review, we identified 21 different terms used for Shadow IT related concepts. This variety makes it difficult to identify related research and build upon it. To address this ambiguity, we reduce the different terms to six distinct concepts by developing a taxonomy and examining their relation¬ships. We do so by using a rigorous iterative methodology to identify common characteristics and to classify terms along them. By clustering the results, we derive and visualize the taxonomy. The identified concepts are Feral Practices, Workarounds, Shadow IT, Shadow Systems, Un-enacted Projects, and Shadow Sourcing. We elaborate on the concepts along their characteristics and clearly define and delimit them. As a result, we create a guide for their usage, increase search- and comparability, and unify existing knowledge. KW - Shadow IT KW - Shadow systems KW - Shadow sourcing KW - Feral practices KW - Workarounds KW - Taxonomy KW - Terminology KW - Informationstechnik KW - Datensicherung KW - Taxonomie KW - Literaturbericht Y1 - 2016 UR - https://aisel.aisnet.org/amcis2016/EndUser/Presentations/3/ SP - 1 EP - 10 ER - TY - CHAP A1 - Kopper, Andreas A1 - Westner, Markus T1 - Deriving a Framework for Causes, Consequences, and Governance of Shadow IT from Literature T2 - Proceedings zur Multikonferenz Wirtschaftsinformatik 2016 (MKWI 2016), Technische Universität Ilmenau, Thüringen, 09.-11. März 2016 N2 - Shadow IT is a widespread phenomenon which includes systems, services, and processes that are not part of the "official" corporate IT. The topic is still an emerging research area and slowly gaining traction in recent years but a state of the art analysis is missing to date. We therefore conduct a structured literature review to derive a framework for causes, consequences, and governance of Shadow IT. We identify motivators, enablers, and missing barriers as causes for Shadow IT, both positive and negative consequences on an organizational and a technical level and governance approaches which focus on clearance of existing or prevention of future Shadow IT. Our review reveals that constructivist, qualitative design using a case study approach dominates existing research. There are no dominant theories yet to explain Shadow IT. We also highlight possibilities for future research to focus on the less explored governance aspect. KW - Schatten-IT KW - IT-Governance KW - Informationsmanagement KW - Corporate Governance KW - Literaturbericht Y1 - 2016 SP - 1687 EP - 1698 ER - TY - CHAP A1 - Sonnleitner, Daniel A1 - Westner, Markus T1 - Quo vadis IT infrastructure BT - decision support for cloud computing adoption from a business perspective T2 - Proceedings of the 22nd UKAIS Conference : Ubiquitous Information Systems: Surviving and thriving in a connected society, 2017 Oxford, April 3rd-5th 2017 N2 - Many IT organizations are confronted with the question whether to modernize their IT infrastructure. While most data centers run on a virtualized environment, Cloud Computing technology emerges with new characteristics on fast provision of standardized resources in a scalable IT infrastructure. Public cloud vendors offer IT services on demand, so that IT organizations do not have to operate their own hardware. Moreover, private cloud architectures gain influence, claiming to provide flexible and elastic IT infrastructure. The paper at hand guides the strategic decision for adoption of Cloud Computing on IT infrastructure. Therefore, we first introduce a taxonomy for IT infrastructure encompassing a technological and a sourcing perspective. Second, we evaluate selective areas of the taxonomy adopting the SWOT framework to understand both opportunities and challenges of Cloud Computing for IT infrastructure from a business perspective. KW - Cloud Computing KW - Cloud Adoption KW - Cloud Migration KW - SWOT KW - Infrastructure as a Service KW - IT Infrastructure KW - Cloud Computing KW - IT-Abteilung KW - Outsourcing KW - Service-Rechenzentrum Y1 - 2017 ER - TY - JOUR A1 - Strahringer, Susanne A1 - Westner, Markus A1 - Bary, Benedikt von T1 - IT-Backsourcing JF - Das Wirtschaftsstudium : wisu N2 - 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. KW - Betriebliches Informationssystem KW - Insourcing KW - IT-Backsourcing KW - Information systems KW - Outsourcing KW - Rückverlagerung KW - Auslagerung Y1 - 2019 IS - 6 SP - 702 EP - 706 PB - Lange ; Mohr CY - Düsseldorf ; Tübingen ER - TY - CHAP A1 - Westner, Markus T1 - Video-enhanced lectures in high-teaching-load environments with limited resources BT - benefits and challenges for lecturers and students T2 - Proceddings of the 11th International Technology, Education and Development Conference (INTED 2017), Valencia, Spain. 6-8 March N2 - Massive Open Online Courses (MOOCs) have been gaining a lot of attention in the last years. Those courses and their videos are often professionally produced and incorporate a significant investment of time and financial resources. In many cases such courses are “flagship” productions of the associated school or university and produced with budgets lecturers in other institutions do not have available. This makes the use of videos in a regular teaching environment challenging. In addition, lecturers often act in high-teaching-load environments further tightening their capacity constraints. This raises the question whether and how lecturers can benefit from videos in their lectures for increased teaching effectiveness while not sacrificing teaching efficiency. The paper at hand attempts to address this question by providing a critical perspective on the use of videos in a high-teaching-load environment characterized by little financial and staff resource availability. The paper thereby builds upon the three years’ experience of its author in using videos to enhance lectures in German tertiary education institutions in a multi-language, i.e., English and German, teaching environment. The presented findings are both relevant for teaching practice and research: lecturers may benefit from the presented ideas and experiences and may adopt them for their teaching. Researchers may find starting points for new research opportunities on the effectiveness and efficiency of video-enhanced lecturing and learning. The paper is organized as follows. Section 2 describes the context of the study from an institutional and technological perspective. Section 3 outlines the methodology applied and 4 how data was collected. Results from data analysis are presented in section 5. The paper concludes with a reflective summary and outlook in section 6. KW - Hochschulbildung KW - Massive Open Online Course KW - Videos KW - Screencasts Y1 - 2017 U6 - https://doi.org/10.21125/inted.2017.0168 SP - 197 EP - 207 ER - TY - CHAP A1 - Westner, Markus A1 - Kennedy, F. A1 - Furlong, A. T1 - Global student collaboration through international blended learning T2 - Proceedings of the 10th Annual International Conference of Education, Research and Innovation (ICERI2017), Seville, Spain. 16-18 November N2 - In today’s business, collaboration in globally distributed teams becomes more and more common. This is particularly the case in professional services and information systems (IS) where the immaterial nature of services makes globally distributed service creation easily possible. Consequently, companies expect that graduates have intercultural skills and that they are able to work in globally distributed teams, especially in professional services like consulting or in IS. However, management or IS curriculums often lack courses that teach those respective skills. The suggested course attempts to fill this gap through an innovative course design and delivery. The course intends to replicate a professional project environment in which the students are supposed to deliver a project as a joint international team. In the beginning of the course, students learn key aspects of project management, intercultural management, distributed collaboration, and the professional services industry in a self-paced manner through video lectures. Then they form teams, plan their project, and subsequently execute their project plan jointly. Instructors from the participating institutions supervise and coach the students. The project execution is supposed to resemble a business project with a meeting schedule, agreed deliverables, regular steering committees in which the instructors play the role of the clients. This paper outlines the concept of this international blended-teaching course. It suggests potential learning objectives, a course description, a teaching syllabus, and an assessment framework. KW - Blended learning KW - Global collaboration KW - Distributed teams KW - Integriertes Lernen KW - Internationale Kooperation KW - Virtuelles Team Y1 - 2017 U6 - https://doi.org/10.21125/iceri.2017.2030 SP - 7625 EP - 7631 ER - TY - CHAP A1 - Kobus, Jörn A1 - Westner, Markus T1 - Lean Management of IT Organizations BT - A Literature Review T2 - Proceedings of the 19th Pacific Asia Conference in Information Systems (PACIS 2015), Singapore, Jul 5-9 N2 - Lean Management has been successfully applied by companies around the world, mainly in production/manufacturing functions. Recently, the interest to investigate a wider application of Lean Management especially in service functions increased. However, it is not clear how Lean Management can be applied to IT organizations. Therefore, this study aims to provide an overview on common characteristics and future research directions. A literature review on existing scholarly research from January 2004 to June 2014 is conducted. Using a database-driven search approach, a total of 1,206 research contributions are found of which 49 were identified as relevant. Results indicate a low theory grounding of mostly formulative and interpretative research items. This implies that research on Lean Management of IT organizations is still at its nascent state. Content-wise, five research themes emerge. The majority of research investigates IT organizations in a role to support Lean Management in production/manufacturing functions (determining “what to work on”), therefore more research on how Lean Management can be applied to IT organizations themselves (determining “how to work”) could be beneficial. Future research could also try to build on Change Management theories, as the implementation of Lean Management is of transformational character. KW - Lean Management KW - Lean IT KW - Information technology KW - Information systems KW - Lean knowledge work KW - Lean services KW - Application development KW - Application maintenance KW - Infrastructure services KW - Lean Management KW - Informationstechnik Y1 - 2015 UR - https://aisel.aisnet.org/cgi/viewcontent.cgi?article=1084&context=pacis2015 ER - TY - CHAP A1 - Kobus, Jörn A1 - Westner, Markus T1 - Lean Management of IT Organizations BT - Implementation Success Factors and Theoretical Foundation T2 - Proceedings of the 21th Americas Conference on Information Systems (AMCIS 2015), Puerto Rico, August 13-15 N2 - Lean Management has been successfully applied in production/manufacturing functions since more than four decades. Recently, the interest to investigate Lean Management also in service functions increased. Therefore, this study aims to (1) Consolidate critical success factors (CSFs) for the implementation of Lean Management of IT organizations; and (2) Describe a theoretical foundation for these CSFs. With respect to (1) a database-driven search was conducted. CSFs then were extracted and categorized. In total 13 CSF groups were assigned to three dimensions: Mindset and behavior; Organization and skills; and Process facilitation and performance management. To understand underlying mechanisms better, and with respect to (2) we related existing (IS) theory to identified groups of CSFs. Especially, five theoretical concepts are discussed: Absorptive capacity, Agency theory, Cognitive dissonance, Dynamic capabilities, and System dynamics. Future research needs to validate the results of (1) and (2) empirically in IT functions. KW - Lean Management KW - Lean IT KW - Information technology KW - Information systems KW - critical success factors KW - Lean knowledge work KW - Lean services KW - Application development KW - Application maintenance KW - Infrastructure services KW - Lean Management KW - Informationstechnik KW - Erfolgsfaktor Y1 - 2015 UR - https://aisel.aisnet.org/amcis2015/StrategicUse/GeneralPresentations/3/ SP - 1 EP - 17 ER - TY - CHAP A1 - Westner, Markus T1 - Antecedents of success in IS offshoring projects BT - Proposal for an empirical research study T2 - Proceedings of the 17th European Conference on Information Systems (ECIS 2009), Verona N2 - The paper presents a research model and a measurement instrument for a research-in-progress study on the antecedents of success in IS offshoring projects. In this empirical-confirmatory study, we intend to analyse the impact of the constructs “offshoring expertise”, “trust in offshore service provider”, “project suitability”, “knowledge transfer”, and “liaison quality” on offshore project success. Constructs and indicators are derived from an extensive literature review. We plan to formulate a structural equation model and to test it using partial least squares (PLS) as an analysis technique. Our research model addresses the paucity of research that quantitatively examines offshoring success. KW - Informationstechnik KW - Offshoring KW - Methode der partiellen kleinsten Quadrate KW - Offshoring KW - Outsourcing KW - Project success KW - Partial least squares Y1 - 2009 UR - https://aisel.aisnet.org/cgi/viewcontent.cgi?article=1272&context=ecis2009 SP - 3104 EP - 3116 ER - TY - BOOK A1 - Westner, Markus T1 - IS offshoring BT - essays on project suitability and success N2 - Information systems (IS) offshoring describes the transfer of IS services to an offshoring service provider in a near or far away country. It has received growing attention in the past and there is a strong momentum in shifting IS services abroad. Markus Westner examines the IS offshoring phenomenon from the perspective of German companies. He first provides an overview of the current literature in the field of IS offshoring. Based on interviews with 47 industry experts, evaluation criteria for selecting projects for offshoring are identified. Finally, the author examines determinants of IS offshore project success in German companies based on a statistical analysis of 304 projects using structural equation modeling (PLS). KW - Informationssystem KW - Offshoring KW - Beschaffung KW - IT Strategie KW - Internationale Arbeitsteilung KW - Nearshoring KW - Offshore KW - Offshoring KW - Modeling Y1 - 2010 SN - 978-3-8349-2046-1 U6 - https://doi.org/10.1007/978-3-8349-8407-4 PB - Gabler CY - Wiesbaden ER - TY - RPRT A1 - Westner, Markus T1 - Information systems offshoring BT - A review of the literature KW - Informationstechnik KW - Offshoring Y1 - 2007 UR - https://fis.tu-dresden.de/portal/de/publications/information-systems-offshoring--a-review-of-the-literature(9fa44cab-24a3-4150-9ed0-cd73bec92d17).html CY - Dresden ER - TY - CHAP A1 - Westner, Markus ED - Picot, Arnold ED - Fischer, Tim T1 - Übersicht über aktuelle Weblog-Skripte und -Services T2 - Weblogs professionell : Grundlagen, Konzepte und Praxis im unternehmerischen Umfeld KW - Kommunikation KW - Unternehmen KW - Weblog KW - Wissensmanagement Y1 - 2007 SN - 978-3898643757 SP - 175 EP - 190 ER - TY - JOUR A1 - Strahringer, Susanne A1 - Westner, Markus A1 - Kobus, Jörn T1 - Lean IT BT - Lean Management in IT-Organisationen JF - WISU - Das Wirtschaftsstudium KW - Informationstechnik KW - Lean Management Y1 - 2017 IS - 1 SP - 87 EP - 92 ER - TY - JOUR A1 - Westner, Markus A1 - Strasser, Artur T1 - IT-Offshoring JF - WISU - Das Wirtschaftsstudium KW - Informationsmanagement KW - Offshoring Y1 - 2014 IS - 5 SP - 650 EP - 652 ER - TY - CHAP A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Current state of IS offshoring research BT - A descriptive meta-analysis T2 - Mäkiö, Juho; Betz, Stefanie; Stephan, Rolf (Eds.): Offshoring of software development. Methods and tools for risk management. Karlsruhe: Universitätsverlag Karlsruhe N2 - 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. KW - Informationsmanagement KW - Offshoring KW - Erfolgsfaktor KW - Offshoring KW - Nearshoring KW - Informations systems sourcing KW - Outcome KW - Project success KW - Success factors Y1 - 2007 UR - http://jitm.ubalt.edu/XXI-1/article4.pdf SP - 7 EP - 22 ER - TY - CHAP A1 - Weber, Karsten ED - Scheule, Rupert M. ED - Capurro, Rafael ED - Hausmanninger, Thomas T1 - Non-proprietäre Software und Geschenkökonomie: Lösungen für die digitale Spaltung? T2 - Vernetzt gespalten. Der Digital Divide in ethischer Perspektive Y1 - 2004 UR - https://digi20.digitale-sammlungen.de/de/fs1/object/goToPage/bsb00042699.html?pageNo=188 SP - 189 EP - 197 PB - Fink CY - München ER - TY - CHAP A1 - Weiss, Nils A1 - Renner, Sebastian A1 - Mottok, Jürgen A1 - Matoušek, Václav T1 - Transport Layer Scanning for Attack Surface Detection in Vehicular Networks T2 - CSCS '20: Computer Science in Cars Symposium N2 - In the beginning of every security analysis or penetration test of a system, information about the target has to be gathered. On IT-Systems a port scan is usually performed as a first step of an investigation. Since the communication protocols differ in automotive systems, generic port scanning tools can’t be used for a security analysis of CANs. More complex protocols have a higher likelihood of implementation errors and bugs. On CAN networks, such payloads are transferred through International Standard Transport Protocol (ISO-TP) communication. We designed a new methodology to identify ISO-TP endpoints in automotive networks. Every of these endpoints can provide exploitable application layer protocols and therefor has to be considered during penetration testing and security analysis. We contribute a new scan approach for the automated evaluation of possible attack surfaces in automotive CAN networks which has a higher coverage and multiple advantages than state of the art approaches. KW - automotive networks KW - network scan KW - attack surface detection KW - automation Y1 - 2020 U6 - https://doi.org/10.1145/3385958.3430476 IS - 7 SP - 1 EP - 8 CY - Feldkirchen ER - TY - CHAP A1 - Reuter, Rebecca A1 - Stark, Theresa A1 - Sedelmaier, Yvonne A1 - Landes, Dieter A1 - Mottok, Jürgen A1 - Wolff, Christian T1 - Insights in Students’ Problems during UML Modeling T2 - 2020 IEEE Global Engineering Education Conference (EDUCON): Proceedings N2 - UML (Unified Modeling Language) is the current de facto as well as de jure standard (ISO/IEC 19505:2012) notation to visualize models in software development. UML provides essential guidelines and rules to visualize and understand complex software systems. This is the reason why it has become part of curricula for software engineering courses at many universities worldwide. It is well known, however, that UML is hard to grasp for novices, mainly due to its complexity. In order to tackle the problem of teaching UML to novice students appropriately, it is inevitable to understand their needs and problems much better than we do now. This paper presents empirical insights into students' problems when developing common UML diagrams. Identified problems are generalized, giving rise to a problem catalogue that is derived from our empirical findings, thus establishing a basis for addressing these problems through focused learning arrangements. KW - UML KW - UML problems KW - software engineering KW - higher education KW - visual notation Y1 - 2020 U6 - https://doi.org/10.1109/EDUCON45650.2020.9125110 SP - 592 EP - 600 ER - TY - CHAP A1 - Gruber, Hans A1 - Wolff, Christian A1 - Mottok, Jürgen A1 - Bazo, Alexander A1 - Hauser, Florian A1 - Schreistetter, Stefan T1 - Tutorial on Software Engineering Education in Co-Located Multi-User Eye-Tracking-Environments T2 - Proceedings of the 32nd IEEE Conference on Software Engineering Education and Training: Munich, November 2020 N2 - We briefly describe a tutorial on the application of Eye-Tracking technology for Software Engineering Education. We will showcase our setup of a large-scale Eye-Tracking-Classroom and its usage for real-time improvement of traditional learning scenarios in Software Engineering Education. We will focus on the integration of gaze data into modern integrated development environments (IDEs) and demonstrate a complete workflow for its usage in co-located multi-user Eye-Tracking-Environments. KW - eye-tracking KW - software engineering education KW - multi-user eye tracking KW - real-time learning scenarios Y1 - 2020 U6 - https://doi.org/10.1109/CSEET49119.2020.9206170 ER - TY - CHAP A1 - Hauser, Florian A1 - Schreistetter, Stefan A1 - Reuter, Rebecca A1 - Mottok, Jürgen A1 - Gruber, Hans A1 - Holmqvist, Kenneth A1 - Schorr, Nick T1 - Code reviews in C++: Preliminary results from an eye tracking study T2 - ETRA '20 Short Papers: ACM Symposium on Eye Tracking Research and ApplicationsJune 2020 N2 - Code reviews are an essential part of quality assurance in modern software projects. But despite their great importance, they are still carried out in a way that relies on human skills and decisions. During the last decade, there have been several publications on code reviews using eye tracking as a method, but only a few studies have focused on the performance differences between experts and novices. To get a deeper understanding of these differences, the following experiment was developed: This study surveys expertise-related differences in experts’, advanced programmers’, and novices’ eye movements during the review of eight short C++ code examples, including correct and erroneous codes. A sample of 35 participants (21 novices, 14 advanced and expert programmers) were recruited. A Tobii Spectrum 600 was used for the data collection. Measures included participants’ eye movements during the code review, demographic background data, and cued retrospective verbal comments on replays of their own eye movement recordings. Preliminary results give proof for experience-related differences between participants. Advanced and expert programmers performed significantly better in case of error detection and the eye tracking data implies a more efficient reviewing strategy. Y1 - 2020 SN - ISBN 9781450371346 U6 - https://doi.org/10.1145/3379156.3391980 SP - 1 EP - 5 ER - TY - CHAP A1 - Schmid, Michael A1 - Fritz, Florian A1 - Mottok, Jürgen T1 - Parallel Programming in Real-Time Systems T2 - Architecture of computing systems - ARCS 2019, 32nd international conference, Copenhagen, Denmark, May 20-21, 2019, proceedings N2 - The enormous amounts of data modern real-time systems have to process lead to expensive, long-lasting calculations. In order to manage those computations in a timely manner, parallel task models have gained a lot of popularity lately. However, parallel programming can be very cumbersome and verbose. Other computationally intensive sectors have dealt with parallel computing for decades and have accumulated their experience in the development of parallel frameworks. Examples of well known parallel runtime systems are OpenMP, Intel Threading Building Blocks (TBB) and Microsoft Parallel Pattern Library (PPL). These runtime systems allow developers to enhance parallelism in their applications in a straightforward fashion. However, those parallel frameworks and the patternbased interfaces they provide might not be easily applicable in real-time systems. In this paper, we investigate the use of parallel programming frameworks in time-critical systems. On that account, we discuss considerations for the design of real-time applications that make use of such parallel runtime systems. Furthermore, we evaluate three library-based frameworks from different computing sectors, namely Intel Threading Building Blocks, Embedded Multicore Building Blocks (EMBB) and High Performance ParalleX (HPX), by conducting benchmarks of various parallel algorithms on an embedded multicore architecture. Y1 - 2019 UR - https://ieeexplore.ieee.org/abstract/document/8836206 PB - VDE-Verlag CY - Berlin ER - TY - CHAP A1 - Mottok, Jürgen A1 - Schiller, Frank A1 - Völkl, Thomas A1 - Zeitler, Thomas T1 - A concept for a safe realization of a state machine in embedded automotive applications T2 - Computer safety, reliability, and security, 26th International Conference, SAFECOMP 2007, Nuremberg, Germany, September 18-21, 2007; proceedings N2 - Currently, both fail safe and fail operational architectures are based on hardware redundancy in automotive embedded systems. In contrast to this approach, safety is either a result of diverse software channels or of one channel of specifically coded software within the framework of Safely Embedded Software. Product costs are reduced and flexibility is increased. The overall concept is inspired by the well-known Vital Coded Processor approach. Since Mealy state machines are frequently used in embedded automotive systems, application software with a general Mealy state machine is realized differently with Safely Embedded Software starting from the high level programming language C with corresponding measurements. KW - Safely KW - Embedded Software KW - Safe State Machine KW - Diverse Instructions KW - Safety Code Weaving KW - Safety Supervisor Y1 - 2007 U6 - https://doi.org/10.1007/978-3-540-75101-4_2 SP - 283 EP - 288 ER - TY - JOUR A1 - Hummel, M. A1 - Mottok, Jürgen A1 - Egen, R. A1 - Schiller, Frank A1 - Mattes, T. A1 - Blum, M. A1 - Druckstein, F. T1 - Generische Safety-Architektur für Kfz-Software JF - Spektrum, das Magazin der Hochschule Regensburg Y1 - 2007 CY - Regensburg ER - TY - JOUR A1 - Schiller, Frank A1 - Mottok, Jürgen A1 - Blum, M. A1 - Duckstein, F. A1 - Egen, R. A1 - Hummel, M. A1 - Mattes, T. T1 - Generische Safety-Architektur für KFZ-Software JF - Hanser automotive Y1 - 2006 SP - 52 EP - 54 ER - TY - CHAP A1 - Deubzer, Michael A1 - Mottok, Jürgen A1 - Flug, Christian A1 - Zeitler, Thomas T1 - Profiling Performance Analyse von Embedded Real-Time System Architekturen T2 - Embedded Software Engineering Kongress, Tagungsband ; 8. bis 10. Dezember 2008, Sindelfingen Y1 - 2008 SP - 155 EP - 167 ER - TY - CHAP A1 - Schmidt, Peter A1 - Mottok, Jürgen T1 - "Werkstattbericht" Bioagile Softwareentwicklung T2 - Embedded Software Engineering Kongress, Tagungsband ; 8. bis 10. Dezember 2008, Sindelfingen Y1 - 2008 SP - 455 EP - 460 ER - TY - CHAP A1 - Gorlatch, Sergei A1 - Dünnweber, Jan ED - Getov, Vladimir ED - Laforenza, Domenico ED - Reinefeld, Alexander T1 - From Grid Middleware to Grid Applications BT - Bridging the Gap with HOCs T2 - Future Generation Grids N2 - This paper deals with the problem of application programming for grid systems that combine heterogeneous data and computational resources via the Internet. We argue that grid programming is still too complex because of the big gap between the currently used and anticipated grid middleware, (e.g., Globus or WSRF) and the application level. We suggest that this gap needs to be closed in future-generation grids and propose a novel approach to bridging the gap by using Higher-Order Components (HOCs) — recurring patterns of parallel behaviour that are provided to the user as program building blocks with pre-packaged implementation and middleware setup. The presentation is illustrated with a simple case study of computing fractal images. Our experiments demonstrate that HOCs can simplify grid application programming significantly, without serious performance loss. KW - components KW - Grid services KW - Globus toolkit KW - mobile code Y1 - 2005 SN - 978-0-387-27935-0 U6 - https://doi.org/10.1007/978-0-387-29445-2_13 SP - 241 EP - 261 PB - Springer Verlag CY - Berlin ER - TY - CHAP A1 - Hayakawa, Shuhei A1 - Al-Falouji, Ghassan A1 - Schickhuber, Gerald A1 - Mandl, Roland A1 - Yoshida, Takahiro A1 - Hangai, Seiichiro T1 - A Method of Toothbrush Position Measurement using AR Markers T2 - 2020 IEEE 2nd Global Conference on Life Sciences and Technologies (LifeTech): 10-12 March 2020, Kyoto, Japan N2 - Appropriate daily brushing of the teeth is important for preventing oral diseases. Therefore, a personal assistant for assessing and coaching appropriate toothbrushing is needed. Herein, a three-dimensional toothbrush position measurement method using augmented reality (AR) markers is proposed. The AR markers are detected via a brushing video captured using a smartphone camera. The AR markers are installed on each surface of a dodecahedron attached at the rear end of the toothbrush. This report describes the proposed method, the resulting toothbrush position measurement accuracy, and the optimal number of markers needed for an accurate measurement of the position. KW - AR marker KW - position measurement KW - toothbrush Y1 - 2020 U6 - https://doi.org/10.1109/LifeTech48969.2020.1570619103 SP - 91 EP - 93 PB - IEEE ER - TY - JOUR A1 - Weber, Karsten A1 - Rinke, Bernhard A1 - Alwardt, Christian T1 - Dr. Seltsam, oder wie ich lernte, die Drohne zu lieben BT - Ein Überblick aktueller Debatten zum Drohneneinsatz JF - TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis N2 - Drohnen werden inzwischen in vielen und sehr unterschiedlichen Kon-texten verwendet. Aus dem Blickwinkel der Technikfolgenabschätzung (TA) scheint es daher sinnvoll, den Umfang der momentanen und zu-künftigen Nutzung von Drohnen und daraus resultierende Implikatio-nen näher zu beleuchten und eine Bestandsaufnahme durchzuführen. Darüber hinaus sollen die voraussichtlichen Pfade der weiteren Tech-nikentwicklung, relevante Akteure und deren Interessenslage sowie zu-künftige Anwendungspotenziale und Einsatzfelder analysiert werden KW - drones KW - civil use KW - military use KW - technology assessment Y1 - 2018 U6 - https://doi.org/10.14512/tatup.27.3.11 VL - 27 IS - 3 SP - 11 EP - 13 PB - Institute for Technology Assessment and Systems Analysis / KIT ER - TY - JOUR A1 - Weber, Karsten A1 - Kleine, Nadine A1 - Pallas, Frank A1 - Ulbricht, Max-R. T1 - Technik zur Unterstützung von Citizen Science und Open Science BT - Technische und organisatorische Herausforderungen und mögliche Lösungsansätze JF - TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis N2 - 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. Y1 - 2017 U6 - https://doi.org/10.14512/tatup.26.1-2.25 VL - 26 IS - 1/2 SP - 25 EP - 30 ER - TY - JOUR A1 - Weber, Karsten T1 - Technik in der Pflege BT - Was war und ist; was wird, soll, darf, muss sein? JF - Evangelium und Wissenschaft Y1 - 2018 VL - 39 IS - 1 ER -