@inproceedings{WulfLindnerStrahringeretal., author = {Wulf, Frederik and Lindner, Tobias and Strahringer, Susanne and Westner, Markus}, title = {IaaS, PaaS, or SaaS? The Why of Cloud Computing Delivery Model Selection}, series = {Proceedings of the 54th Hawaii International Conference on System Sciences, 2021}, booktitle = {Proceedings of the 54th Hawaii International Conference on System Sciences, 2021}, isbn = {978-0-9981331-4-0}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-7913}, pages = {6285 -- 6294}, abstract = {Most large-scale organizations adopted Cloud Computing (CC) on a company level in recent years. Managers now face the challenge to appropriately implement CC "operationally", i.e., for information systems (ISs). We refer to this as post-adoption, addressing the extent of technology usage after adoption. Specifically, managers need to choose among the CC delivery models Infrastructure-as-a-Service (IaaS), Platform-as-a-Service (PaaS), and Software-asa-Service (SaaS). We differentiate the determinants of this post-adoption decision for IaaS, PaaS, and SaaS. Based on this analysis, we derive criteria that guide managers' delivery model selection: Adopt 1) IaaS for ISs requiring flexibility and reduced time to market, 2) PaaS to access specialized resources, and 3) SaaS to focus on core competencies. Moreover, we analyze the impact on the CC strategy and postulate them as recommendations: I) acknowledge the interplay between governance and time-to-market, II) realize cost savings on company level, and III) consider strategically important ISs for CC.}, language = {en} } @inproceedings{BrosigWestnerStrahringer, author = {Brosig, Christoph and Westner, Markus and Strahringer, Susanne}, title = {Linking IT assets and competitive advantage - IT capabilities of servitized business models}, series = {34th Bled eConference Digital Support from Crisis to Progressive Change: June 27 - 30, 2021, Online: Conference Proceedings}, booktitle = {34th Bled eConference Digital Support from Crisis to Progressive Change: June 27 - 30, 2021, Online: Conference Proceedings}, editor = {Borštnar, Mirjana Kljajić}, isbn = {978-961-286-485-9}, url = {http://nbn-resolving.de/urn:nbn:de:bvb:898-opus4-20158}, pages = {111 -- 123}, abstract = {This paper connects research from business model innovation and information systems by exploring critical IT capabilities for servitized business models. The adoption of servitized business models is a major business model innovation strategy. At the same time, digitalization drives the evolution of IT capabilities at these business models. Scholars argue that it remains unclear how IT capabilities enable servitized business models to build a competitive advantage by achieving cost advantages or differentiation. This paper explores IT capabilities that enable building a competitive advantage for servitized business models based on a qualitative analysis of multiple published case studies. The authors identify configurations of IT capabilities among servitized business models. The findings contribute to servitization research by exploring IT capabilities and how they are combined among servitized business models. The insights help practitioners deploy digital technologies and IT assets effectively as building blocks of IT capabilities to advance their servitized business model.}, subject = {Gesch{\"a}ftsmodell}, language = {en} } @article{WulfWestnerStrahringer, author = {Wulf, Frederik and Westner, Markus and Strahringer, Susanne}, title = {Cloud Computing Adoption: A Literature Review on What Is New and What We Still Need to Address}, series = {Communications of the Association for Information Systems}, volume = {48}, journal = {Communications of the Association for Information Systems}, number = {1}, publisher = {Association for Information Systems, AIS}, issn = {1529-3181}, doi = {10.17705/1CAIS.04843}, pages = {523 -- 561}, abstract = {Research on cloud computing (CC) recently emerged congruently with the technology's importance for organizations at a fast pace. This makes it difficult for practitioners to obtain a consolidated overview of what determines CC adoption based on the numerous papers in this regard. Moreover, for further research in the field to add value, it is necessary to identify what still needs to be addressed. In this vein, we conducted a descriptive review of 39 papers, integrating the results of a previous review on 23 papers from 2014, to compare findings across studies. We identify 44 determinant factors that exhibit consistent directional influence on the dependent meta-variable "CC adoption", extending previous literature reviews with regard to asset, client, and environmental characteristics. We then critically reviewed the research landscape to identify what is there, and what is not yet covered: Future research should specifically regard the adoption of Infrastructure-, Platform-, and Everything-as-a-Service, private, hybrid, and multi-cloud deployment, investigate vendor, solution, and individual characteristics, analyzing information systems, or the decision-maker.}, subject = {Cloud Computing}, language = {en} } @article{WulfWestnerSchoenetal., author = {Wulf, Frederik and Westner, Markus and Sch{\"o}n, Maximilian and Strahringer, Susanne and Loebbecke, Claudia}, title = {Cloud-Computing-Nutzung bei der Continental AG}, series = {Wirtschaftsinformatik \& Management}, volume = {13}, journal = {Wirtschaftsinformatik \& Management}, number = {4}, publisher = {Springer Nature}, issn = {1867-5905}, doi = {10.1365/s35764-021-00342-x}, pages = {302 -- 309}, abstract = {Dieser Artikel richtet sich an IT-F{\"u}hrungskr{\"a}fte, die die Nutzung von Cloud Computing (CC) in ihren Unternehmen f{\"o}rdern wollen. Eine Fallstudie des Konzerns Continental AG zeigt, wie Continental CC in großem Maßstab f{\"u}r die Organisation nutzbar machte. Das Unternehmen ging dabei in drei Schritten vor: Nach einer Experimentierphase wurde der Einsatz zunehmend professionalisiert und CC abschließend umfangreich nutzbar gemacht. Hieraus k{\"o}nnen drei Hand-lungsempfehlungen f{\"u}r F{\"u}hrungskr{\"a}fte abgeleitet werden: (1) die CC-Strategie nach dem Delivery-Modell differenzieren, (2) in die Integration von Infrastructure-as-a-Service (IaaS)- und Platform-as-a-Service (PaaS)-Anbietern investieren und (3) den Wissenstransfer innerhalb des Unternehmens f{\"o}rdern, um Ver{\"a}nderungen zu erm{\"o}glichen.}, subject = {Cloud Computing}, language = {de} } @inproceedings{KaessGodefroidBorghoffetal., author = {K{\"a}ss, Sebastian and Godefroid, Marie and Borghoff, Vincent and Strahringer, Susanne and Westner, Markus and Plattfaut, Ralf}, title = {Towards a taxonomy of concepts describing IT outside the IT department}, series = {Australasian Conference on Information Systems 2021, Sydney}, booktitle = {Australasian Conference on Information Systems 2021, Sydney}, abstract = {Due to technological advances, IT is increasingly introduced and managed outside of (or even hidden from) an organisation's IT department. As a result, researchers and practitioners have created multiple concepts describing different facets and trends of this development. While the individual concepts typically focus on different aspects, there are overlaps between these concepts. This effect hampers research progress as it creates redundancies and separate streams of knowledge development. We propose a taxonomy of the concepts Lightweight IT, IT Consumerisation, Bring Your Own Device, Shadow IT, and Business-Managed IT to solve this research problem based on a systematic literature review. For this purpose, we derive characterising dimensions of each concept from existing studies and analyse literature according to the usage of terms. As a result, we can describe and delineate the concepts. Thus, we contribute a taxonomy of IT outside the IT department to improve the transfer of research results between research streams.}, language = {en} }