TY - CHAP A1 - Hassmann, Tobias A1 - Westner, Markus T1 - A Framework for Rigorous Execution and Presentation of Expert Interviews in IS and Digital Transformation Research T2 - Advances in Information Systems Development: Exploring New Horizons and Opportunities N2 - This article addresses the inconsistent conceptualization of expert interviews in information systems (IS) research by providing a structured framework for their rigorous execution and presentation. Through a thematic analysis of 28 method-relevant papers, key characteristics and good practices for executing expert interviews are identified. Additionally, 39 highly cited IS studies were reviewed to examine expert interview utilization in IS research and to identify good practices for presenting expert interview outcomes, which are further validated on nine digital transformation (DT) studies. Our findings highlight the adaptability and varied applications of expert interviews in IS research and offer recommendations to strengthen rigor in their preparation, execution, and presentation of outcomes. Theoretical and practical implications are provided to guide a more systematic and rigorous use of expert interviews in IS research. Y1 - 2025 SN - 9783031878794 U6 - https://doi.org/10.1007/978-3-031-87880-0_4 SN - 2195-4968 SP - 63 EP - 86 PB - Springer Nature CY - Cham ER - TY - JOUR A1 - Strasser, Artur A1 - Strahringer, Susanne A1 - Westner, Markus T1 - Determinants of success and failure of knowledge transfer in information systems offshoring BT - A ranking-type Delphi study JF - International Journal of Information Technology and Management N2 - The transfer of knowledge from client to service provider poses major challenges in information systems (IS) offshoring projects. Knowledge transfer directly affects IS offshoring success. Therefore, associated challenges must be overcome. Our study examines the determinants of success and failure of knowledge transfer in IS offshoring projects based on a ranking-type Delphi study. We questioned 32 experts from Germany, each with more than ten years of experience in near- or offshore initiatives to seek a consensus among them. We identified 19 success and 20 failure determinants. These determinants are ranked in order of importance using best-worst scaling. Aspects of closer cooperation are critical for effective knowledge transfer. This includes regular collaboration, willingness to help and support, and mutual trust. In contrast, critical determinants of failure are concerned with fears and fluctuation of human resources. Hidden ambiguities or knowledge gaps, an unwillingness and disability to share knowledge, and high fluctuation of human resources negatively impact knowledge transfer. KW - best-worst scaling KW - Delphi KW - Information systems offshoring KW - knowledge transfer KW - determinants of success Y1 - 2023 U6 - https://doi.org/10.1504/IJITM.2023.10055151 SN - 1741-5179 VL - 22 IS - 1/2 PB - Inderscience ER - TY - JOUR A1 - Kratzer, Simon A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Mehr als Vollzeit: Fractional CIOs in KMUs JF - HMD Praxis der Wirtschaftsinformatik N2 - Auch kleine und mittlere Unternehmen (KMUs) benötigen zunehmend ein effektives Informationstechnologie- (IT)-Management, um wettbewerbsfähig zu bleiben. Im Vergleich zu großen Unternehmen verfügen KMUs jedoch oft nicht über die Ressourcen, die Arbeitgeberattraktivität oder den Bedarf, um einen Chief Information Officer (CIO) in Vollzeit zu beschäftigen. Um diese Lücke zu schließen, hat eine wachsende Zahl von Expertinnen und Experten weltweit damit begonnen, CIO-Dienste in Teilzeit anzubieten. Auf diese Weise erhalten KMUs Zugang zu erfahrenen und kompetenten IT-Führungskräften zu einem Bruchteil der Kosten und ohne langfristige Verpflichtungen. Während diese so genannten „Fractional CIOs“ in der Praxis bereits einen Mehrwert schaffen, gibt es noch kaum wissenschaftliche Untersuchungen zu diesem neuen Phänomen. In einem größeren Forschungsprojekt mit insgesamt 62 Fractional CIOs aus 10 Ländern wurden daher eine Definition, Typen verschiedenartiger Engagements und Erfolgsfaktoren abgeleitet. Die vorliegende Studie fasst die Ergebnisse zusammen und setzt sie in Bezug zum deutschen Markt, indem sie drei Fractional CIOs/CTOs aus Deutschland befragt. Es zeigt sich, dass die folgenden vier Engagement-Typen von Fractional CIOs für KMUs in verschiedenen Situationen von Nutzen sind: Strategisches IT-Management, Restrukturierung, Skalierung und Hands-on Support. Darüber hinaus zeigt die Studie, dass Vertrauen, die Unterstützung durch das Top-Management-Team und die Integrität des Fractional CIOs Schlüsselfaktoren für den Erfolg von Fractional CIO-Engagements sind. Für den deutschen Markt werden die Ergebnisse durch drei befragte Fractional CIOs/CTOs weitgehend bestätigt. Die Fractional CIOs/CTOs können zwar keine genauen Gründe für die geringe Akzeptanz der Rolle nennen, betonen aber ihr Wertpotenzial für den deutschen Markt. KW - Chief Information Officer KW - Chief Technology Officer KW - Fractional CIO KW - Fractional CTO KW - Teilzeit-Interim-Management Y1 - 2023 U6 - https://doi.org/10.1365/s40702-023-01010-x SN - 2198-2775 PB - Springer ER - TY - CHAP A1 - Hillebrand, Patrick A1 - Westner, Markus T1 - Tenure and Background of CIOs in Germany - Influencing Factors and International Comparison T2 - Proceedings of the of the 18th Conference on Computer Science and Intelligence Systems (FedCSIS 2023), Warsaw, Poland, 17–20 September, 2023 N2 - The average tenure of Chief Information Officers (CIOs) has increased over the past few years. Nevertheless, the average tenure of CIOs is shorter than that of Chief Executive Officers (CEOs). While most studies on tenure and background are based on data from US IT executives, studies on German CIOs are missing. This study analyzes the tenure of German CIOs as a proxy for management effectiveness and how certain factors influence it. An original and unique dataset of 384 IT executives from German companies is examined. The data include the size and industry sector of the companies, educational and professional backgrounds of the CIOs, and the CIOs' reporting lines. Data were analyzed using the chi-square test and Fisher's exact test. The German CIOs had a median tenure of 4.0 years. However, if we examine executives who are currently in office and executives with a completed term of office separately , the median tenure differs. The results also show that German CIOs do not have shorter tenures than German CEOs. When compared with US CIOs, the results depend on the values selected for comparison. In addition, the analysis shows that neither the size and industry sector of the companies nor the educational and professional backgrounds of the CIOs and managers of the CIO reports have a statistically significant influence on the tenure of IT executives. The factors examined in this study can be considered as preconditions for the CIO position. In the future, factors that play a role during tenure should be examined. KW - Chief Information Officer KW - CIO KW - CIO background KW - CIO tenure Y1 - 2023 U6 - https://doi.org/10.15439/2023F5836 SP - 557 EP - 566 PB - Warsaw University of Technology ER - TY - JOUR A1 - Winkler, Fabian A1 - Westner, Markus T1 - A Systematic Literature Review of DevOps Success Factors and Adoption Models JF - SOICT '23: Proceedings of the 12th International Symposium on Information and Communication Technology. Ho Chi Minh City, Vietnam, 7-8 December 2023 N2 - This paper investigates DevOps adoption, emphasizing its cultural dimensions in the context of the information systems domain. Utilizing a robust systematic literature review methodology, we discerned nine salient success factors and delineated three stage models instrumental for a smooth transition into DevOps-centric projects. Despite the increasing breadth of research in the DevOps area, the absence of a consolidated definition remains a challenge, underscoring the importance of a unified interpretative framework. This research notably extends the current body of knowledge by focusing on the cultural dynamics of DevOps adoption. As a result, it offers a refined lens through which both practitioners involved in the adoption process and academic researchers can comprehend the nuances and implications of cultural shifts in the evolving landscape of DevOps within information systems. Y1 - 2023 SN - 979-8-4007-0891-6 U6 - https://doi.org/10.1145/3628797.3628883 SP - 525 EP - 532 PB - ACM ER - TY - CHAP A1 - Hassmann, Tobias A1 - Westner, Markus T1 - IS executives and sustainability BT - A literature review T2 - 26th International Conference on Business Informatics (CBI), 09-13 September 2024, Vienna, Austria N2 - The pressing global sustainability challenges, encapsulated in the United Nations’ Sustainable Development Goals (SDGs), require profound transformations across multiple levels. It is imperative for the Information Systems (IS) discipline to engage in addressing these challenges. This paper aims to contribute to this imperative through a scoping literature review, examining factors that enable IS executives to drive sustainability outcomes within organizations, utilizing the Input-Mediator-Outcome (IMO) framework. By analyzing 31 articles from important IS journals and conferences between 2008 and 2024, this review identifies key input factors for sustainability outcomes, such as individual IS executive inputs, the role of the Top Management Team (TMT) setting and organizational contexts, as well as external influences. In addition, it explores how team-specific processes can augment sustainability efforts. The paper concludes by proposing future research questions to address underrepresented SDGs, investigate external impact factors more thoroughly, and emphasize the role of individual IS executive inputs. These insights aspire to advance the understanding of IS executives’ potential to influence sustainability in organizational settings. KW - IS executives KW - chief information officer KW - chief digital officer KW - sustainability KW - literature review Y1 - 2024 SN - 979-8-3315-2909-3 U6 - https://doi.org/10.1109/CBI62504.2024.00017 SN - 2378-1971 PB - IEEE ER - TY - JOUR A1 - Kratzer, Simon A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Factors for Fractional CIO Engagement Success JF - Information & Management N2 - As small- to medium-sized enterprises struggle with IT management, an increasing number appoint Fractional CIOs, i.e., CIOs that work part-time for multiple organizations simultaneously. We use Q-methodology to empirically evaluate the relative importance of factors for Fractional CIO engagement success and find that trust, top management team support, and the Fractional CIO's integrity are most important. Further, we identify three groups of Fractional CIOs: Strategic IT Advisors, Full-ownership CIOs, and Change Agents. Our results guide organizations when hiring and working with Fractional CIOs and provide the basis for further research on Fractional CIO archetypes.As small- to medium-sized enterprises struggle with IT management, an increasing number appoint Fractional CIOs, i.e., CIOs that work part-time for multiple organizations simultaneously. We use Q-methodology to empirically evaluate the relative importance of factors for Fractional CIO engagement success and find that trust, top management team support, and the Fractional CIO's integrity are most important. Further, we identify three groups of Fractional CIOs: Strategic IT Advisors, Full-ownership CIOs, and Change Agents. Our results guide organizations when hiring and working with Fractional CIOs and provide the basis for further research on Fractional CIO archetypes. KW - Fractional CIO KW - Virtual CIO KW - SMEs KW - Small Businesses KW - Engagement Success KW - Q-Methodology Y1 - 2023 U6 - https://doi.org/10.1016/j.im.2023.103793 SN - 0378-7206 VL - 60 PB - Elsevier ER - TY - JOUR A1 - Kratzer, Simon A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Four Decades of Chief Information Officer Research BT - A Literature Review and Research Agenda Based on Main Path Analysis JF - ACM SIGMIS Database: the DATABASE for Advances in Information Systems N2 - Despite the relevance and maturity of the Chief Information Officer (CIO) research field, no studies exist that exhaustively summarize the current body of knowledge, focusing on the development of the field over its entire timespan. The paper at hand addresses this research gap and presents an exhaustive literature review on the CIO research field using main path analysis. We identify the central papers in CIO research and eight main research streams by quantitatively and qualitatively analyzing 466 papers. We find that established research streams, e.g., 'Evolving role of the CIO' and 'CIO hierarchical position and relationships' as well as recently emerging research streams, e.g., 'CIO as business enabler' and 'CIOs and IT security,' draw growing attention. Based on our findings, we develop promising further avenues for research in the CIO field. KW - Applied computing KW - Enterprise computing KW - IT governance KW - Informationsmanager KW - Literaturbericht KW - Chief Information Officer KW - Literature review KW - Research agenda KW - Main Path Analysis KW - Bibliometric Analysis Y1 - 2023 U6 - https://doi.org/10.1145/3614178.3614182 N1 - Preprint unter: https://opus4.kobv.de/opus4-oth-regensburg/frontdoor/index/index/docId/5420 VL - 54 IS - 3 SP - 37 EP - 74 PB - ACM ER - TY - CHAP A1 - Schroll, Jonas A1 - Westner, Markus T1 - Relation between Edge Computing and the Internet of Things BT - Systematic Literature Review T2 - 2023 Portland International Conference on Management of Engineering and Technology (PICMET), 23-27 July 2023, Monterrey, Mexico N2 - The Internet of Things (IoT) is an emerging computing paradigm providing new approaches to collect and analyze environmental data. However, as specific challenges arose, the paradigm of Edge Computing with its potential solution capabilities came into place. The combination of both paradigms is currently highly discussed in industry and research. This paper aims to contribute to this field by conducting a systematic literature review to examine the differences and relation between IoT and Edge Computing on a meta-level. It first investigates conceptual backgrounds, use cases, and implementation types. After that, the differences between the paradigms are highlighted. It becomes clear that the significant distinction is in the architectural composition. However, the scientific consensus reveals that both paradigms have a common historical background, and Edge Computing is perceived as the next step in the evolution of IoT. Furthermore, Edge Computing-based systems can address common IoT challenges identified in the two paradigms’ problem-solution space. Ultimately, there is a need for further research in security, edge intelligence, and standardization, with Edge Computing frameworks able to address these in practice. KW - Internet of Things KW - Edge Computing KW - IoT Y1 - 2023 U6 - https://doi.org/10.23919/PICMET59654.2023.10216820 SP - 1 EP - 9 PB - IEEE ER - TY - CHAP A1 - Hillebrand, Patrick A1 - Westner, Markus T1 - Lean IT BT - A Review and Comparative Analysis of Practitioner and Academic Literature T2 - 2023 Portland International Conference on Management of Engineering and Technology (PICMET), 23-27 July 2023, Monterrey, Mexico N2 - Companies have applied Lean Management and its methods in their production functions for several decades. They also increasingly use Lean Management to improve service delivery, for example, in their IT organizations, which is referred to as “Lean IT”. Lean IT finds widespread recognition in business practice, but corresponding academic research is still scarce. The paper at hand intends to shed light on the current perspectives of Lean IT from an academic point and a practitioner point of view. The paper applies an innovative quantitative approach of literature analysis using semantic entity annotator and a keyword analysis to systematically identify and compare topics academics and practitioners deem relevant in context of Lean IT. We analyze practitioner media and scholarly articles published from January 2014 to June 2019. The analysis shows that research does not seem to adequately address the topics that are highly relevant for practitioners when it comes to Lean IT, e.g., issues pertinent to Automation, DevOps, role of the CIO, IT Service Management or Scrum in context of Lean IT are under-researched. Our analysis further shows that interest in Lean IT as a field is rising in both groups. Our study can help to guide further research activities. KW - Time-frequency analysis KW - Systematics KW - Databases KW - Semantics KW - Encyclopedias KW - Media Y1 - 2023 U6 - https://doi.org/10.23919/PICMET59654.2023.10216855 SP - 1 EP - 11 PB - IEEE ER - TY - JOUR A1 - Kratzer, Simon A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Traction with fraction: Strategic IS management in SMEs through Fractional CIOs JF - International Journal of Information Systems and Project Management N2 - Small and medium-sized enterprises (SMEs) increasingly need to manage nformation technology (IT) effectively in order to remain competitive. However, compared to larger organizations, SMEs often face challenges in terms of resources and employer attractiveness, and regularly do not have the need to employ a Chief Information Officer (CIO) on a full-time basis. To address this issue, a growing number of global experts have begun to provide CIO services on a part-time basis for multiple clients simultaneously. This approach allows SMEs to tap into the expertise of experienced IT leaders at a fraction of the cost and without committing to long-term arrangements. While these professionals, known as “Fractional CIOs”, have proven their value in the field, there has been a lack of academic research on this emerging trend. Therefore, we carried out a comprehensive research project between 2020 and 2023, involving 62 Fractional CIOs from 10 countries. The research produced a definition, different types of engagements, and success factors for Fractional CIOs and their engagements. This paper summarizes these findings for a wider audience of academics and practitioners. KW - Fractional CIO KW - Chief Information Officer KW - SMEs KW - small businesses Y1 - 2024 U6 - https://doi.org/10.12821/ijispm120101 SN - 2182-7788 VL - 12 IS - 1 SP - 5 EP - 16 ER - TY - JOUR A1 - Brosig, Christoph A1 - Gräubig, Dix M. A1 - Strahringer, Susanne A1 - Westner, Markus T1 - Prerequisites and Causal Recipes for Manufacturers’ IT-Enabled Service Innovation Success JF - Communications of the Association for Information Systems N2 - For manufacturing firms, success in innovating IT-enabled services is a critical antecedent to benefit from digital servitization of their business models. Digital servitization literature has explored mechanisms for success in innovating IT-enabled services, indicating that the phenomenon is multifaceted and needs to be explained from multiple theoretical perspectives. We derive a conceptual model for success in innovating IT-enabled services covering its multifaceted nature by referring to knowledge-based and organizational control theory. We test this model using qualitative cases of IT-enabled service innovation initiatives in manufacturing firms and use set-theoretic analyses to account for the multifaceted nature of the phenomenon. The necessary condition analysis yields that a certain degree of service innovation capabilities is a prerequisite for success. With the results of a qualitative comparative analysis, we obtain five solution terms as causal recipes for success in innovating IT-enabled services. Our results contribute to research by offering a theory-based approach that explains the multiplicity of success in IT-enabled service innovation. Practitioners benefit from our results by understanding prerequisites and causal recipes for success while learning from unsuccessful initiatives in innovating IT-enabled services of manufacturing firms. Our study is also an example of how to rigorously calibrate qualitative data using a structured approach. Y1 - 2024 U6 - https://doi.org/10.17705/1CAIS.05509 SN - 1529-3181 VL - 55 SP - 205 EP - 256 PB - Association for Information Systems, AIS ER - TY - JOUR A1 - Kopper, Andreas A1 - Fürstenau, Daniel A1 - Zimmermann, Stephan A1 - Klotz, Stefan A1 - Rentrop, Christopher A1 - Rothe, Hannes A1 - Strahringer, Susanne A1 - Westner, Markus T1 - Shadow IT and Business-Managed IT: A Conceptual Framework and Empirical Illustration JF - International Journal of IT/Business Alignment and Governance (IJITBAG) N2 - Research on Shadow IT is facing a conceptual dilemma in cases where previously “covert” systems developed by business entities are integrated in the organizational IT management. These systems become visible, are thus not “in the shadows” anymore, and subsequently do not fit to existing definitions of Shadow IT. Practice shows that some information systems share characteristics of Shadow IT but are created openly in alignment with the IT organization. This paper proposes the term “Business-managed IT” to describe “overt” information systems developed or managed by business entities and distinguishes it from Shadow IT by illustrating case vignettes. Accordingly,our contribution is to suggest a concept and its delineation against other concepts. In this way, IS researchers interested in IT originated from or maintained by business entities can construct theories with a wider scope of application that are at the same time more specific to practical problems. In addition, the terminology allows to value potentially innovative developments by business entities more adequately. KW - Alignment KW - Business-managed IT KW - IT governance KW - Shadow IT KW - Unternehmen KW - Informationstechnik KW - Datensicherung KW - Organizational IT management Y1 - 2018 U6 - https://doi.org/10.4018/IJITBAG.2018070104 VL - 9 IS - 2 SP - 53 EP - 71 PB - IGI Global ER - TY - JOUR A1 - Käss, Sebastian A1 - Strahringer, Susanne A1 - Westner, Markus T1 - A Multiple Mini Case Study on the Adoption of Low Code Development Platforms in Work Systems JF - IEEE Access N2 - Although adopting Low Code Development Platforms (LCDPs) promises significant efficiency and effectiveness improvements for application development, its adoption still needs further empirical research. This paper uses a combinatorial approach to research LCDP adoption and presents the results of a multiple mini case study with 36 cases on LCDP adoption. A combination of the Socio-Technical Systems theory and the Technology-Organisational-Environment model is used as a theoretical lens. In this paper, we show that LCDP adoption is a multifaceted phenomenon and identify three archetypes for LCDP adoption (i.e., IT Resource Shortage Mitigators, Application Development Democratisers, and Synergy Realisers) and one archetype for LCDP non-adoption (i.e., Intricacy Adversaries). Each archetype can be interpreted as an individual path towards LCDP (non-)adoption. Based on these archetypes, we derive seven starting points for practitioners to adopt LCDPs in work systems. Moreover, by using the theoretical lenses, the paper shows that for an LCDP adoption to occur, an optimisation of the social and technical sub-systems is required. KW - Low Code Development Platform KW - Adoption KW - Case study Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-65634 SN - 2169-3536 N1 - Corresponding author: Markus Westner SP - 118762 EP - 118786 PB - IEEE ER - TY - JOUR A1 - Kopper, Andreas A1 - Klotz, Stefan A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Shadow IT and Business-managed IT BT - Practitioner Perceptions and Their Comparison to Literature JF - Journal of Information Technology Management (JITM) N2 - Two concepts describe the autonomous deployment of IT by business entities: Shadow IT and Business-managed IT. Shadow IT is deployed covertly, that is, software, hardware, or IT services created/procured or managed by business entities without alignment with the IT organization. In contrast, Business-managed IT describes the overt deployment of IT, that is, in alignment with the IT organization or in a split responsibility model. The purpose of this paper is to extend the conceptual understanding of Shadow IT and Business-managed IT, comparing the perceptions of 29 CIOs and senior IT managers with the results of a systematic literature review. By doing so, this paper presents a structured and comprehensive view of causing factors, outcomes, and governance of Shadow IT and Business-managed IT in practice. A comparison of academic literature and practitioner perceptions reveals the limitations and gaps of the current research and highlights avenues for future research. The authors find three category-spanning themes occurring as causing factors, outcomes, and—as part of governance measures—factors to improve the IT organization: (1) (Poor) business-IT alignment (2) (lack of) agility, and (3) (lack of) policies. This study is innovative with its comprehensive qualitative interview data that the authors compare to the existing literature. Therefore, the paper brings together theoretical and practical insights into Shadow IT and Businessmanaged IT, which should aid practitioners and scholars in decision making and future research. KW - Corporate Governance KW - Strategisches Management KW - Shadow IT KW - Business-managed IT KW - IT governance KW - Agility KW - Business-IT alignment KW - Informationsmanagement Y1 - 2019 UR - http://home.thejitm.org/XXX-4/contents.html SN - 1042-1319 VL - 30 IS - 4 ER - TY - JOUR A1 - Käss, Sebastian A1 - Brosig, Christoph A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Short and sweet: multiple mini case studies as a form of rigorous case study research JF - Information Systems and e-Business Management N2 - Case study research is one of the most widely used research methods in Information Systems (IS). In recent years, an increasing number of publications have used case studies with few sources of evidence, such as single interviews per case. While there is much methodological guidance on rigorously conducting multiple case studies, it remains unclear how researchers can achieve an acceptable level of rigour for this emerging type of multiple case study with few sources of evidence, i.e., multiple mini case studies. In this context, we synthesise methodological guidance for multiple case study research from a cross-disciplinary perspective to develop an analytical framework. Furthermore, we calibrate this analytical framework to multiple mini case studies by reviewing previous IS publications that use multiple mini case studies to provide guidelines to conduct multiple mini case studies rigorously. We also offer a conceptual definition of multiple mini case studies, distinguish them from other research approaches, and position multiple mini case studies as a pragmatic and rigorous approach to research emerging and innovative phenomena in IS. KW - Case study research KW - Multiple mini case study KW - Short case study KW - Methodological guidance Y1 - 2024 U6 - https://doi.org/10.1007/s10257-024-00674-2 PB - Springer Nature ER - TY - JOUR A1 - Klotz, Stefan A1 - Kopper, Andreas A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Von Schatten-IT zu Business-managed IT: Fachbereichs-IT gezielt gestalten JF - Wirtschaftsinformatik & Management N2 - Fachbereichs-IT, Schatten-IT, Business-managed IT. All diese Begriffe beschreiben IT, die neben den eigentlichen, regulären IT-Systemen oder -Prozessen in Unternehmen existieren und von Mitarbeiterinnen und Mitarbeitern der Fachbereiche genutzt werden. Im Fall von„Schatten-IT“ handelt es sich um IT-Systeme und -Prozesse (IT-Instanzen), die sich ohne Kenntnis der IT-Verantwortlichen etabliert haben; im Fall von„Business-managed IT“ entstehen die IT-Systeme und -Prozesse in Kenntnis der bzw. in Abstimmung mit den IT-Verantwortlichen im Unternehmen.„Fachbereichs-IT“ subsumiert Schatten-IT und Business-managed IT. Welche Ursachen führen zu solchen IT-Instanzen, welche Potenziale und Risiken haben diese IT-Instanzen und wie lassen sie sich steuern? KW - Business-managed IT KW - Fachbereichs IT KW - IT Governance KW - Schatten IT KW - Shadow IT Y1 - 2022 U6 - https://doi.org/10.1365/s35764-022-00421-7 SN - 1867-5913 SN - 1867-5905 VL - 14 IS - 4 SP - 282 EP - 287 PB - Springer Nature ER - TY - CHAP A1 - Klotz, Stefan A1 - Westner, Markus A1 - Strahringer, Susanne T1 - From Shadow IT to Business-managed IT and Back Again BT - How Responsibility for IT Instances Evolves Over Time T2 - Pacific Asia Conference on Information Systems (PACIS): 2020, Dubai N2 - Today, information technology (IT) is not anymore solely deployed and maintained by the IT organization, but also by business units. IT deployed or managed by business units is called Shadow IT (without alignment with the IT organization) or Business-managed IT (in alignment or a split responsibility model with the IT organization), contrasting “classical” IT. However, the responsibility for deployed IT might change over time. Therefore, this paper conceptualizes the progression of the responsibility for IT as a trajectory through initialization, potential transitions, and discontinuance. The paper illustrates this conceptual framework using four exemplary case vignettes of IT instances. Empirical findings of the case vignettes determine indications when employees initialize an IT instance as Shadow IT, Business-managed IT, or IT-managed systems and reasons why the responsibility for an IT instance changes over time. The results suggest that scholars and practitioners should add a temporal dimension to the governance of IT instances. KW - IT-Governance KW - Shadow IT KW - Business-managed IT KW - Shadow IT KW - Business-managed IT KW - IT governance KW - trajectory KW - application governance Y1 - 2020 UR - https://aisel.aisnet.org/pacis2020/94/ ER - TY - JOUR A1 - Klotz, Stefan A1 - Kopper, Andreas A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Causing factors, outcomes, and governance of Shadow IT and business-managed IT BT - A systematic literature review JF - International Journal of Information Systems and Project Management N2 - Shadow IT and Business-managed IT describe the autonomous deployment/procurement or management of Information Technology (IT) instances, i.e., software, hardware, or IT services, by business entities. For Shadow IT, this happens covertly, i.e., without alignment with the IT organization; for Business-managed IT this happens overtly, i.e., in alignment with the IT organization or in a split responsibility model. We conduct a systematic literature review and structure the identified research themes in a framework of causing factors, outcomes, and governance. As causing factors, we identify enablers, motivators, and missing barriers. Outcomes can be benefits as well as risks/shortcomings of Shadow IT and Business-managed IT. Concerning governance, we distinguish two subcategories: general governance for Shadow IT and Business-managed IT and instance governance for overt Business-managed IT. Thus, a specific set of governance approaches exists for Business-managed IT that cannot be applied to Shadow IT due to its covert nature. Hence, we extend the existing conceptual understanding and allocate research themes to Shadow IT, Business-managed IT, or both concepts and particularly distinguish the governance of the two concepts. Besides, we find that governance themes have been the primary research focus since 2016, whereas older publications (until 2015) focused on causing factors. KW - Shadow IT KW - Business-managed IT KW - IT governance KW - literature review KW - outcomes KW - Betriebliches Informationssystem KW - Datensicherung KW - Literaturbericht Y1 - 2019 UR - http://www.sciencesphere.org/ijispm/archive/ijispm-070102.pdf U6 - https://doi.org/10.12821/ijispm070102 SN - 2182-7796 SN - 2182-7788 SN - 2182-780X VL - 7 IS - 1 SP - 15 EP - 43 ER - TY - JOUR A1 - Klotz, Stefan A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Critical Success Factors of Business-managed IT: It Takes Two to Tango JF - Information Systems Management N2 - This paper identifies critical success factors of Business-managed IT based on case study results. Four groups of critical success factors emerge: (1) general approach to Business-managed IT/Business-managed IT strategy, (2) Business-managed IT project prerequisites/Business-managed IT team, (3) Business-managed IT project execution and outcome, and (4) information technology management for Business-managed IT. The results suggest that bilateral responsibility between the business unit and the IT organization is the most favorable governance option for Business-managed IT. KW - Betriebliches Informationssystem KW - Strategisches Management KW - Erfolgsfaktor KW - Fallstudie KW - Business-managed IT KW - Shadow IT KW - critical success factors KW - IT governance KW - application governance Y1 - 2022 U6 - https://doi.org/10.1080/10580530.2021.1938300 VL - 39 IS - 3 SP - 220 EP - 240 PB - Taylor&Francis ER - TY - CHAP A1 - Klotz, Stefan A1 - Westner, Markus A1 - Strahringer, Susanne A1 - Schieder, Christian T1 - Transformed Knowledge Sharing Through Business-managed IT and Shadow IT T2 - Proceedings of the 25th Americas Conference on Information Systems (AMCIS 2019), Cancún, Mexiko, August 15-17 N2 - Business-managed IT and Shadow IT describe the autonomous deployment/management of IT instances by business units. For the former, this happens in alignment with the IT organization of the enterprise, for the latter, without alignment. We analyze why and how Business-managed IT and Shadow IT transform knowledge sharing with two case studies drawing on the theoretical lens of the knowledge-based view. Several motivators lead to the autonomous implementation of knowledge management systems (KMSs), for example, shortcomings of existing systems. The implemented KMSs have multiple benefits for knowledge sharing, such as a reduction of knowledge sharing barriers. However, we notice that the Shadow IT KMS leads to challenges for cross-unit knowledge sharing due to the covert nature of Shadow IT. Based on the findings of our case studies, we develop a mid-range theory to explain the transformation of knowledge sharing in enterprises supported by Business-managed IT and Shadow IT. KW - Business-managed IT KW - Shadow IT KW - knowledge sharing KW - knowledge management system Y1 - 2019 UR - https://aisel.aisnet.org/amcis2019/org_transformation_is/org_transformation_is/5/ SP - 1 EP - 10 PB - AIS ER - TY - CHAP A1 - Könning, Michael A1 - Heinrich, Kai A1 - Leyh, Christian A1 - Westner, Markus T1 - A quantitative analysis of regional differences in pivotal IT outsourcing contract features T2 - Proceedings of the 27th European Conference on Information Systems (ECIS), Stockholm & Uppsala, Sweden, June 8-14, 2019 (ECIS 2019 proceedings) 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 support for 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 - Contract Design KW - Cultural Regions KW - IT Outsourcing KW - IT Sourcing KW - Sourcing Strateg Y1 - 2019 UR - https://www.researchgate.net/profile/Kai-Heinrich-3/publication/332834150_A_quantitative_analysis_of_regional_differences_in_pivotal_IT_outsourcing_contract_features/links/5ccc00624585153c8c68551a/A-quantitative-analysis-of-regional-differences-in-pivotal-IT-outsourcing-contract-features.pdf SN - 978-1-7336325-0-8 SP - 1 EP - 15 PB - Association for Information Systems ER - TY - JOUR A1 - Weber, Karsten A1 - Dendorfer, Sebastian A1 - Süß, Franz A1 - Kubowitsch, Simone A1 - Schratzenstaller, Thomas A1 - Haug, Sonja A1 - Mohr, Christa A1 - Kiesl, Hans A1 - Drechsler, Jörg A1 - Westner, Markus A1 - Kobus, Jörn A1 - Schubert, Martin J. W. A1 - Zenger, Stefan A1 - Pietsch, Alexander A1 - Weiß, Josef A1 - Hinterseer, Sebastian A1 - Schieck, Roland A1 - Scherzinger, Stefanie A1 - Klettke, Meike A1 - Ringlstetter, Andreas A1 - Störl, Uta A1 - Bissyandé, Tegawendé F. A1 - Seeburger, Achim A1 - Schindler, Timo A1 - Ramsauer, Ralf A1 - Kiszka, Jan A1 - Kölbl, Andreas A1 - Lohmann, Daniel A1 - Mauerer, Wolfgang A1 - Maier, Johannes A1 - Scorna, Ulrike A1 - Palm, Christoph A1 - Soska, Alexander A1 - Mottok, Jürgen A1 - Ellermeier, Andreas A1 - Vögele, Daniel A1 - Hierl, Stefan A1 - Briem, Ulrich A1 - Buschmann, Knut A1 - Ehrlich, Ingo A1 - Pongratz, Christian A1 - Pielmeier, Benjamin A1 - Tyroller, Quirin A1 - Monkman, Gareth J. A1 - Gut, Franz A1 - Roth, Carina A1 - Hausler, Peter A1 - Bierl, Rudolf A1 - Prommesberger, Christian A1 - Ławrowski, Robert Damian A1 - Langer, Christoph A1 - Schreiner, Rupert A1 - Huang, Yifeng A1 - She, Juncong A1 - Ottl, Andreas A1 - Rieger, Walter A1 - Kraml, Agnes A1 - Poxleitner, Thomas A1 - Hofer, Simon A1 - Heisterkamp, Benjamin A1 - Lerch, Maximilian A1 - Sammer, Nike A1 - Golde, Olivia A1 - Wellnitz, Felix A1 - Schmid, Sandra A1 - Muntschick, Claudia A1 - Kusterle, Wolfgang A1 - Paric, Ivan A1 - Brückl, Oliver A1 - Haslbeck, Matthias A1 - Schmidt, Ottfried A1 - Schwanzer, Peter A1 - Rabl, Hans-Peter A1 - Sterner, Michael A1 - Bauer, Franz A1 - Steinmann, Sven A1 - Eckert, Fabian A1 - Hofrichter, Andreas ED - Baier, Wolfgang T1 - Forschungsbericht 2017 T3 - Forschungsberichte der OTH Regensburg - 2017 KW - Forschung KW - Forschungsbericht Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:898-opus4-13835 SN - 978-3-9818209-3-5 CY - Regensburg ER - TY - CHAP A1 - Ho, Joe Ee A1 - Ooi, Boon Yaik A1 - Westner, Markus T1 - Application Integration Framework for Large Language Models T2 - 2024 5th International Conference on Artificial Intelligence and Data Sciences (AiDAS), Bangkok, Thailand, 03-04 September 2024 N2 - Large Language Models (LLMs) have unlocked new opportunities in processing non-structured information. However, integrating LLM into conventional applications poses challenges due to their non-deterministic nature. This paper introduces a framework designed to effectively integrate LLM into intermediate modules by ensuring more consistent and reliable outputs. The framework includes three key components: the Sieve, which captures and retries processing of incorrect outputs; the Circuit Breaker, which stops processing persistently incorrect outputs; and the Optimizer, which enhances processing efficiency by combining inputs into single prompts. Experimental results employing structured methodology demonstrate the framework's effectiveness, achieving significant improvements a 71.05% reduction in processing time and an 82.97% reduction in token usage while maintaining high accuracy. The proposed framework, agnostic to specific LLM implementations, aids the integration of LLMs into diverse applications, enhancing automation and efficiency in fields such as finance, healthcare, and education. KW - error handling KW - token efficiency KW - AI integration KW - data pipeline optimization KW - automation KW - data processing framework Y1 - 2024 SN - 979-8-3315-2855-3 U6 - https://doi.org/10.1109/AiDAS63860.2024.10730541 SP - 1 EP - 6 PB - IEEE ER - TY - CHAP A1 - Westner, Markus A1 - Preiss, Niklas T1 - Unraveling jingle-jangle fallacies in digital assistant technologies : a comprehensive systematic review and research agenda T2 - Proceedings of tenth international congress on information and communication technology : ICICT 2025, London, Volume 9 N2 - Digital assistant technologies (DATs) such as chatbots, virtual assistants, and intelligent agents have gained widespread attention, yet inconsistent terminology remains a critical challenge. The fragmented nature of previous research has led to significant confusion due to overlapping and interchangeable use of terms across industries. This systematic literature review, following the PRISMA protocol, consolidates the current state of knowledge on DATs and addresses the prevalent jingle-jangle fallacies in their terminology. Analysis of 137 articles identified keycharacteristics, applications, and conceptual overlaps of various DATs, uncovering 39 distinct technologies categorized under three overarching concepts: assistants, chatbots, and agents. Despite shared functionalities, terminological inconsistencies persist across different sectors, presenting challenges for both academic research and practical implementation. This review emphasizes the need for standardized terminology and clearer classification frameworks to facilitate broader DAT adoption across organizational contexts. Y1 - 2025 U6 - https://doi.org/10.1007/978-981-96-6438-2_15 SP - 199 EP - 227 PB - Springer ER - TY - CHAP A1 - Preiß, Niklas A1 - Westner, Markus T1 - Towards a Taxonomy for Digital Assistant Technologies: Addressing the Jingle-Jangle Fallacies T2 - 38th Bled eConference: empowering transformation: shaping digital futures for all: conference proceedings, 8.-11.6.2025, Bled N2 - This study proposes a unified taxonomy for Digital Assistant Technologies (DATs) to resolve terminological inconsistencies and eliminate »Jingle-Jangle fallacies.« By employing a systematic taxonomy development method on 137 papers, the framework categorizes DATs across four meta-characteristics: AI technology, context, intelligence, and interaction. This taxonomy facilitates the clear differentiation of three primary DAT concepts: assistant, chatbot, and agent. By providing a structured framework, the study enhances conceptual clarity, fosters more focused research, and ensures better alignment of DATs. Y1 - 2025 SN - 9789612869984 U6 - https://doi.org/10.18690/um.fov.4.2025.1 SP - 1 EP - 20 PB - University of Maribor Press ER - TY - GEN A1 - Capellmann, Dominik A1 - Westner, Markus T1 - ChatGPT in Software Engineering: Potentials, Challenges and Possible Applications for Unit Testing and Code Debugging T2 - 21st International Conference on Applied Computing 2024 Y1 - 2024 ER - TY - CHAP A1 - Preiß, Niklas A1 - Westner, Markus T1 - From Agents to Copilots: a Systematic Review of Digital Assistant Technology Adoption in Proprietary Productivity Software T2 - Annals of Computer Science and Information Systems N2 - This study provides a systematic review of how the impact and adaptation of digital assistant technologies (DATs) are defined, operationalized, and studied, synthesizing key domains where DATs generate or are expected to generate value. Based on an analysis of 61 articles published since 2013, it identifies five main areas of impact: productivity and efficiency, business development, resource optimization, quality enhancement, and the promotion of learning and creativity. The review highlights DAT adoption across various disciplines and industries, while revealing limited longitudinal research on benefits and adaptation. Key gaps remain in understanding strategic use and sustained impact. Future research should explore longitudinal comparisons of recently introduced generative AI-driven DATs and their organizational implications. This review contributes to information systems research by structuring current knowledge on DAT adoption and outcomes, and by proposing a research agenda to support deeper exploration of their value and long-term integration. KW - Digital Assistant Technology KW - Copilot KW - Generative AI KW - Technology Adoption KW - Productivity Y1 - 2025 U6 - https://doi.org/10.15439/2025F3271 SN - 2300-5963 VL - 43 SP - 565 EP - 576 PB - Polish Information Processing Society ER - TY - CHAP A1 - Köhler, Jessica A1 - Harl, Maximilian Victor A1 - Westner, Markus A1 - Strahringer, Susanne T1 - Can AI be a Scholar? A Systematic Review on the Role of Generative AI in Systematic Literature Reviews T2 - 2025 27th International Conference on Business Informatics (CBI), 09-12. September 2025, Lisbon, Portugal N2 - Systematic literature reviews (SLRs) are foundational for research but resource-intensive to conduct. With the rise of large language models (LLMs) such as ChatGPT, generative AI (GenAI) tools are being increasingly explored for their potential to support and transform the SLR process. This study presents a systematic review of peerreviewed articles that examine how LLM-based GenAI tools are used in different SLR phases. Following the PRISMA 2020 guidelines, we screened 1,846 publications published since January 2021 until April 2025 and selected 54 for in-depth analysis. Each study was coded by review phase, prompting approach, automation level, validation type and challenges. Our findings show that GenAI is most often used to support in the screening, search, and writing phases, typically through Basic Prompting and under human oversight. While many studies report efficiency gains, concerns remain regarding validity, transparency, and methodological rigor. Moreover, GenAI is frequently applied to isolated tasks but is rarely embedded in a structured, methodologically guided review processhighlighting the need for clearer phase-specific guidance and standards. We offer a structured, phase-specific synthesis that highlights both the promise and the current limitations of GenAI in literature reviews and thereby offer practical recommendations for the responsible use of GenAI in literature reviews. KW - Generative AI KW - Large Language Models KW - ChatGPT KW - Systematic Literature Review KW - Evidence Synthesis KW - AI-assisted Literature Review Y1 - 2025 U6 - https://doi.org/10.1109/CBI68102.2025.00012 PB - IEEE ER - TY - JOUR A1 - Käss, Sebastian A1 - Strahringer, Susanne A1 - Westner, Markus T1 - Archetypes, Situations, and Practices : a Guide to Successful Low-Code Adoption JF - Information Resources Management Journal N2 - This paper extends prior work on low-code by explaining when adoption archetypes occur and how to use them. Motivated by information technology (IT) talent shortages and uneven low-code development platform (LCDP) outcomes, the paper seeks practical guidance for post-adoption choices in work systems. Using a multiple mini case study of 36 cases in large German organizations, this study analyzes interviews and context questionnaires with within-/cross-case coding and pattern matching against a 13-factor model. This analysis identifies situations that trigger three adoption archetypes—application development democratizers, synergy realizers, and IT resource shortage mitigators—and one non-adoption archetype, intricacy adversaries. The analysis also maps advantages and disadvantages and distills 12 good practices. Across adoption cases, efficiency is the dominant goal, whereas non-adoption stems from high application sophistication. The results give actionable guidance: align goals to an archetype, stick to LCDP standards, involve IT and foster an open culture, invest in skilling, reuse platform components, and reserve LCDPs for less-complex apps while planning architecture early. KW - Business-managed IT KW - Low-Code Development KW - Citizen Development KW - Shadow IT KW - Multiple Mini Case Studies KW - Work Systems Theory KW - Good Practices Y1 - 2025 U6 - https://doi.org/10.4018/IRMJ.396005 SN - 1040-1628 VL - 38 IS - 1 PB - IGI Global ER - TY - CHAP A1 - Westner, Markus ED - Hofbauer, Günter T1 - Generative AI in Business BT - Opportunities, Challenges, and Strategic Implications Authors Markus Westner T2 - Artificial Intelligence in Business and Engineering N2 - Generative Artificial Intelligence (GenAI) is transforming industries at an unprecedented rate, offering novel opportunities for productivity and innovation. This article explores the adoption of GenAI, highlighting its accelerated uptake compared to previous technologies. Key topics include productivity gains through GenAI tools (e.g., ChatGPT, Klarna’s AI assistant), challenges such as data quality and organizational readiness, and the implications for business strategy. Practical recommendations for managing generative AI adoption and maximizing its impact on both individual and organizational levels are also provided. The analysis underscores the necessity of aligning AI capabilities with customer needs and creating data-driven, adaptable business models. KW - Generative AI KW - Productivity KW - Technology Adoption Y1 - 2025 SN - 978-3-17-046742-2 SP - 38 EP - 50 PB - Kohlhammer CY - Stuttgart ER - TY - BOOK A1 - Westner, Markus A1 - Strasser, Artur T1 - Objectives and Key Results verstehen und anwenden N2 - Dieses essential gibt eine strukturierte und kompakte Einführung in die Objectives and Key Results-Managementmethode. Es erläutert Herkunft, Definition und Einsatzzweck von Objectives and Key Results (OKR) und beschreibt deren zentrale Bestandteile. Leser:innen erfahren, wie gute Objectives und Key Results formuliert werden und welche Strategien sich zur erfolgreichen Implementierung eignen. Zudem werden praxisrelevante Erfolgs- und Misserfolgsfaktoren analysiert, die den Einsatz von OKR maßgeblich beeinflussen. Ein fundierter Leitfaden für alle, die OKR als Steuerungsinstrument in Organisationen verstehen und wirksam einsetzen möchten. KW - Objectives and Key Results (OKR) KW - Zielmanagement KW - Performance Management KW - Strategieumsetzung KW - Kennzahlen / KPI Y1 - 2025 SN - 978-3-658-50381-9 U6 - https://doi.org/10.1007/978-3-658-50382-6 PB - Springer Gabler CY - Wiesbaden ER -