@article{FabianKunzKonnegenetal.2012,
  author    = {Fabian, Benjamin and Kunz, Steffen and Konnegen, Marcel and M{\"u}ller, Sebastian and G{\"u}nther, Oliver},
  title     = {Access control for semantic data federations in industrial product-lifecycle management},
  series = {Computers in industry : an international, application oriented research journal},
  volume    = {63},
  journal   = {Computers in industry : an international, application oriented research journal},
  number    = {9},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0166-3615},
  doi       = {10.1016/j.compind.2012.08.015},
  pages     = {930 -- 940},
  year      = {2012},
  abstract  = {Information integration across company borders becomes increasingly important for the success of product lifecycle management in industry and complex supply chains. Semantic technologies are about to play a crucial role in this integrative process. However, cross-company data exchange requires mechanisms to enable fine-grained access control definition and enforcement, preventing unauthorized leakage of confidential data across company borders. Currently available semantic repositories are not sufficiently equipped to satisfy this important requirement. This paper presents an infrastructure for controlled sharing of semantic data between cooperating business partners. First, we motivate the need for access control in semantic data federations by a case study in the industrial service sector. Furthermore, we present an architecture for controlling access to semantic repositories that is based on our newly developed SemForce security service. Finally, we show the practical feasibility of this architecture by an implementation and several performance experiments.},
  language  = {en}
}
@article{WinklerGoebelBidaultetal.2012,
  author    = {Winkler, Till J. and Goebel, Christoph and Bidault, Francis and G{\"u}nther, Oliver},
  title     = {Information technology and business practieses in Germany},
  series = {The UCLA Anderson Business and Information Technologies (BIT) Project},
  journal   = {The UCLA Anderson Business and Information Technologies (BIT) Project},
  publisher = {world scientific},
  address   = {Singapore},
  doi       = {10.1142/9789814390880_0005},
  pages     = {81 -- 114},
  year      = {2012},
  language  = {en}
}
@article{GuentherBrechtEckhardtetal.2012,
  author    = {G{\"u}nther, Oliver and Brecht, Franziska and Eckhardt, Andreas and Berger, Christian},
  title     = {Corporate career presences on social network sites: an analysis of hedonic and utilitarian value},
  series = {CHI '12 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems},
  journal   = {CHI '12 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems},
  publisher = {ACM},
  address   = {Texas},
  isbn      = {978-1-4503-1015-4},
  doi       = {10.1145/2207676.2208408},
  pages     = {2441 -- 2450},
  year      = {2012},
  abstract  = {Due to the shortage of skilled workforce and the increasing usage of social network sites, companies increasingly apply social network sites to attract potential applicants. This paper explores how corporate career presences on network sites should be realized in order to attract potential applicants. Therefore, we tested the impact of seven individual characteristics (namely Appointments, Daily Working Routine, Jobs, Corporate News, Entertainment, Media Format, and Features) of these corporate career presences that we extracted by a comprehensive pre-study on users' perceived hedonic and utilitarian value of these presences on social network sites. Based on an online survey with 470 participants, the results reveal a highly significant impact of five characteristics that corporate career presences provide both a hedonic as well as a utilitarian value to the user},
  language  = {en}
}
@article{KrasnovaVeltriGuenther2012,
  author    = {Krasnova, Hanna and Veltri, Natasha F. and G{\"u}nther, Oliver},
  title     = {Self-disclosure and privacy calculus on social networking sites the role of culture intercultural dynamics of privacy calculus},
  series = {Business \& information systems engineering : the international journal of Wirtschaftsinformatik},
  volume    = {4},
  journal   = {Business \& information systems engineering : the international journal of Wirtschaftsinformatik},
  number    = {3},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {1867-0202},
  doi       = {10.1007/s12599-012-0216-6},
  pages     = {127 -- 135},
  year      = {2012},
  abstract  = {Social Network Sites (SNSs) rely exclusively on user-generated content to offer engaging and rewarding experience to its members. As a result, stimulating user communication and self-disclosure is vital for the sustainability of SNSs. However, considering that the SNS users are increasingly culturally diverse, motivating this audience to self-disclose requires understanding of their cultural intricacies. Yet existing research offers only limited insights into the role of culture behind the motivation of SNS users to self-disclose. Building on the privacy calculus framework, this study explores the role of two cultural dimensions - individualism and uncertainty avoidance - in self-disclosure decisions of SNS users. Survey responses of US and German Facebook members are used as the basis for our analysis. Structural equation modeling and multi-group analysis results reveal the distinct role of culture in the cognitive patterns of SNS users. The authors find that trusting beliefs play a key role in the self-disclosure decisions of users from individualistic cultures. At the same time, uncertainty avoidance determines the impact of privacy concerns. This paper contributes to the theory by rejecting the universal nature of privacy calculus processes. The findings provide for an array of managerial implications for SNS providers as they strive to encourage content creation and sharing by their heterogeneous members.},
  language  = {en}
}
@inproceedings{GuentherWinkler2012,
  author    = {G{\"u}nther, Oliver and Winkler, Till J.},
  title     = {Explaining the governance of software as a service applications},
  series = {Multikonferenz Wirtschaftsinformatik 2012 - Tagungsband der MKWI 2012},
  booktitle = {Multikonferenz Wirtschaftsinformatik 2012 - Tagungsband der MKWI 2012},
  publisher = {Gito},
  address   = {Berlin},
  isbn      = {978-3-942183-63-5},
  pages     = {599 -- 612},
  year      = {2012},
  abstract  = {Defining the allocation of decision rights for enterprise applications is a crucial issue in IT governance and organization design. Today, emerging delivery models such as Software as a Service (SaaS) defy the notion of the internal IT department as the focal point of centralized governance. Recognizing the importance of this issue, we find that the phenomenon of 'SaaS governance' itself is not yet well understood. Based on two cases of SaaS adoption, we take a process-theoretic approach to investigate the complex interaction between factors that influence in the allocation of SaaS authority. The results suggest that some factors, such as the locus of initiative and the decision for SaaS, interact with absorptive capacities and determine the later mode of application governance at a very early stage. Thus, the initiative for introducing SaaS emerges as an important intermediate variable between the overall IT governance mode and the resulting SaaS governance outcome.},
  language  = {en}
}
@article{Guenther2012,
  author    = {G{\"u}nther, Oliver},
  title     = {More politics in the GI - More GI in politics},
  series = {Informatik-Spektrum},
  volume    = {35},
  journal   = {Informatik-Spektrum},
  number    = {6},
  doi       = {10.1007/s00287-012-0657-9},
  pages     = {397 -- 398},
  year      = {2012},
  language  = {en}
}
@inproceedings{SchoendienstKulzerGuenther2012,
  author    = {Sch{\"o}ndienst, Valentin and Kulzer, Florian and G{\"u}nther, Oliver},
  title     = {Like versus dislike},
  series = {International Conference on Information Systems : (ICIS 2012)},
  booktitle = {International Conference on Information Systems : (ICIS 2012)},
  publisher = {Curran},
  address   = {Red Hook},
  pages     = {439 -- 454},
  year      = {2012},
  abstract  = {As Facebook's Like-button has become ubiquitous, it is the purpose of this research to investigate (1) whether Likes serve as a signal of a product's or service's quality and (2) how the introduction of a Dislike-button would alter perceptions. Following a qualitative study, we conducted an experiment in which 653 participants were presented with website screenshots featuring varying levels of Likes and Dislikes. The results indicate that the theoretical framing of Likes as a Signal is valid and that people do perceive the quality of products and services as superior when they are associated with more Likes. Signaling also explains the counter-intuitive finding that Dislikes can have a positive effect on people's quality perceptions. Results are discussed with respect to theory and practical implications.},
  language  = {en}
}
@misc{GuentherGoerlichHoffmannetal.2012,
  author    = {G{\"u}nther, Oliver and G{\"o}rlich, Petra and Hoffmann, Florian and Zimmermann, Matthias and J{\"a}ger, Sophie and Weise, Aileen and Wiehn, Tanja and Eckardt, Barbara and Rost, Sophia and Klein, Armin and Eulenfeld, Sophie},
  title     = {Portal = Zwischen H{\"o}rsaal und Trainingsplatz: Studium und Leistungssport},
  number    = {03/2012},
  organization    = {Universit{\"a}t Potsdam, Referat f{\"u}r Presse- und {\"O}ffentlichkeitsarbeit},
  issn      = {1618-6893},
  doi       = {10.25932/publishup-44048},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-440488},
  pages     = {42},
  year      = {2012},
  abstract  = {Aus dem Inhalt: - Zwischen H{\"o}rsaal und Trainingsplatz: Studium und Leistungssport - Studieren sans souci - Brisante Farbenlehre},
  language  = {de}
}
@misc{GuentherMangelsdorfMitzneretal.2012,
  author    = {G{\"u}nther, Oliver and Mangelsdorf, Birgit and Mitzner, Rolf and Loschelder, Wolfgang and Peter, Andreas and Eckert, Barbara and Mikelskis, Helmut and Klein, Alfred and Kirsch, B{\"a}rbel and Edelstein, Wolfgang and Thomas, Gr{\"u}newald and Thomas, P{\"o}sl and Wagner, Dieter and Winskowski, Friedrich and Schad, Martina and Frey, Anne and Bickenbach, Wulf and Madani, Roya and Olaka, Lydia},
  title     = {Portal alumni},
  series = {Das Ehemaligen-Magazin der Universit{\"a}t Potsdam},
  journal   = {Das Ehemaligen-Magazin der Universit{\"a}t Potsdam},
  number    = {9},
  organization    = {Stabsstelle Studierendenmarketing/Alumniprogramm Im Auftrag der Pr{\"a}sidentin der Universit{\"a}t Potsdam},
  issn      = {1613-2343},
  doi       = {10.25932/publishup-44494},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-444943},
  pages     = {60},
  year      = {2012},
  abstract  = {Das zur{\"u}ckliegende Jahr stand an der Universit{\"a}t Potsdam auch im Zeichen des zwanzigj{\"a}hrigen Jubil{\"a}ums der Hochschule. Am 15. Juli 1991, wurde sie gegr{\"u}ndet und w{\"a}hrend einer Festwoche feierten Professorinnen und Professoren, Mitarbeiterinnen, Mitarbeiter und Studierende dieses Jubil{\"a}um geb{\"u}hrend. Seit der Gr{\"u}ndung der gr{\"o}ßten brandenburgischen Hochschule sind wissenschaftliches Renommee, Ansehen und Attraktivit{\"a}t stetig gewachsen. Gerade in den letzten Jahren hat sie ihr Profil gesch{\"a}rft. Vor allem die Kognitions-, die Geo- und Biowissenschaften sind hier zu nennen. Aber auch die Lehrerbildung besitzt einen hohen Stellenwert. International anerkannte Forschungsbereiche, Wissenschaftspreise, eine erfolgreiche Drittmittelbilanz und nicht zuletzt die bauliche Entwicklung an allen drei Standorten sind sichtbare Indikatoren f{\"u}r die erfolgreiche Entwicklung, die die Universit{\"a}t Potsdam in den letzten zwei Jahrzehnten durchlaufen hat. Die drei ehemaligen Pr{\"a}sidenten sowie verschiedene andere Protagonisten werfen in dieser Ausgabe der Portal Alumni einen Blick auf unterschiedliche Aspekte der zur{\"u}ckliegenden Entwicklung der Universit{\"a}t. Vom Erfolg der Universit{\"a}t zeugt auch die wachsende Zahl der Absolventinnen und Absolventen, die die Universit{\"a}t verlassen. Portal Alumni stellt in der vorliegenden Ausgabe deshalb Absolventen und deren universit{\"a}re und berufliche Lebenswege genauer vor und l{\"a}sst damit zugleich kaleidoskopartig 20 Jahre Studium an der Universit{\"a}t Potsdam Revue passieren.},
  language  = {de}
}
@article{Guenther2013,
  author    = {G{\"u}nther, Oliver},
  title     = {Vorwort},
  isbn      = {978-3-941880-75-7},
  year      = {2013},
  language  = {de}
}
@article{Guenther2013,
  author    = {G{\"u}nther, Oliver},
  title     = {Die Vorstandsperspektive},
  series = {Informatik-Spektrum},
  volume    = {36},
  journal   = {Informatik-Spektrum},
  number    = {6},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {0170-6012},
  doi       = {10.1007/s00287-013-0743-7},
  pages     = {505 -- 507},
  year      = {2013},
  language  = {de}
}
@article{FabianKunzMuelleretal.2013,
  author    = {Fabian, Benjamin and Kunz, Steffen and M{\"u}ller, Sebastian and G{\"u}nther, Oliver},
  title     = {Secure federation of semantic information services},
  series = {Decision support systems : DSS ; the international journal},
  volume    = {55},
  journal   = {Decision support systems : DSS ; the international journal},
  number    = {1},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0167-9236},
  doi       = {10.1016/j.dss.2012.05.049},
  pages     = {385 -- 398},
  year      = {2013},
  abstract  = {fundamental challenge for product-lifecycle management in collaborative value networks is to utilize the vast amount of product information available from heterogeneous sources in order to improve business analytics, decision support, and processes. This becomes even more challenging if those sources are distributed across multiple organizations. Federations of semantic information services, combining service-orientation and semantic technologies, provide a promising solution for this problem. However, without proper measures to establish information security, companies will be reluctant to join an information federation, which could lead to serious adoption barriers. Following the design science paradigm, this paper presents general objectives and a process for designing a secure federation of semantic information services. Furthermore, new as well as established security measures are discussed. Here, our contributions include an access-control enforcement system for semantic information services and a process for modeling access-control policies across organizations. In addition, a comprehensive security architecture is presented. An implementation of the architecture in the context of an application scenario and several performance experiments demonstrate the practical viability of our approach.},
  language  = {en}
}
@article{KrasnovaVeltriSpengleretal.2013,
  author    = {Krasnova, Hanna and Veltri, Natasha F. and Spengler, Klaus and G{\"u}nther, Oliver},
  title     = {"Deal of the Day" Platforms what drives Consumer loyalty?},
  series = {Business \& information systems engineering : the international journal of Wirtschaftsinformatik},
  volume    = {5},
  journal   = {Business \& information systems engineering : the international journal of Wirtschaftsinformatik},
  number    = {3},
  publisher = {Springer},
  address   = {Heidelberg},
  issn      = {1867-0202},
  doi       = {10.1007/s12599-013-0268-2},
  pages     = {165 -- 177},
  year      = {2013},
  abstract  = {"Deal of the Day" (DoD) platforms have quickly become popular by offering savings on local services, products and vacations. For merchants, these platforms represent a new marketing channel to advertise their products and services and attract new customers. DoD platform providers, however, struggle to maintaining a stable market share and profitability, because entry and switching costs are low. To sustain a competitive market position, DoD providers are looking for ways to build a loyal customer base. However, research examining the determinants of user loyalty in this novel context is scarce. To fill this gap, this study employs Grounded Theory methodology to develop a conceptual model of customer loyalty to a DoD provider. In the next step, qualitative insights are enriched and validated using quantitative data from a survey of 202 DoD users. The authors find that customer loyalty is in large part driven by monetary incentives, but can be eroded if impressions from merchant encounters are below expectations. In addition, enhancing the share of deals relevant for consumers, i.e. signal-to-noise ratio, and mitigating perceived risks of a transaction emerge as challenges. Beyond theoretical value, the results offer practical insights into how customer loyalty to a DoD provider can be promoted.},
  language  = {en}
}
@article{GuenthervanPuttenBrecht2013,
  author    = {G{\"u}nther, Oliver and van Putten, Bart-Jan and Brecht, Franziska},
  title     = {Challenges in Business Case Development and Requirements for Business Case Frameworks},
  series = {Supporting Reuse in Business Case Development},
  journal   = {Supporting Reuse in Business Case Development},
  publisher = {Springer},
  address   = {Wiesbaden},
  isbn      = {978-3-658-01170-3},
  doi       = {10.1007/978-3-658-01171-0_2},
  pages     = {8 -- 22},
  year      = {2013},
  abstract  = {Business cases (BC) are often used to support information systems (IS) investment evaluation. Unfortunately, business case development (BCD) is a complex task, especially identifying and quantifying the benefits of a proposed investment. Although today's business case frameworks (BCF) support BCD to some extent, they have several limitations},
  language  = {en}
}
@misc{GuentherSuetterlinGoerlichetal.2013,
  author    = {G{\"u}nther, Oliver and S{\"u}tterlin, Sabine and G{\"o}rlich, Petra and Kampe, Heike and Scheuble, Sabrina and Rost, Sophia and J{\"a}ger, Sophie and Eckardt, Barbara and Jaeger, Felix and Zimmermann, Matthias and Hummel, Detlev and Horn-Conrad, Antje},
  title     = {Portal = Herausforderung und Chance: Forschung zum Demografischen Wandel},
  number    = {01/2013},
  organization    = {Universit{\"a}t Potsdam, Referat f{\"u}r Presse- und {\"O}ffentlichkeitsarbeit},
  issn      = {1618-6893},
  doi       = {10.25932/publishup-44051},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-440519},
  pages     = {42},
  year      = {2013},
  abstract  = {Aus dem Inhalt: - Herausforderung und Chance: Forschung zum Demografischen Wandel - Am Patienten orientiert - Welt der Steine},
  language  = {de}
}
@misc{GuentherZimmermannGoerlichetal.2013,
  author    = {G{\"u}nther, Oliver and Zimmermann, Matthias and G{\"o}rlich, Petra and Rost, Sophia and Korbach, Rebecca and Eckardt, Barbara and J{\"a}ger, Sophie and Szameitat, Ulrike and Schwaibold, Julia and Kampe, Heike},
  title     = {Portal = Historische Z{\"a}sur: J{\"u}dische Theologie an Uni Potsdam},
  number    = {04/2013},
  organization    = {Universit{\"a}t Potsdam, Referat f{\"u}r Presse- und {\"O}ffentlichkeitsarbeit},
  issn      = {1618-6893},
  doi       = {10.25932/publishup-44055},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-440555},
  pages     = {42},
  year      = {2013},
  abstract  = {Aus dem Inhalt: - Historische Z{\"a}sur: J{\"u}dische Theologie an Uni Potsdam - Wegen Umbau ge{\"o}ffnet - Eine ungew{\"o}hnliche Reise},
  language  = {de}
}
@article{Guenther2014,
  author    = {G{\"u}nther, Oliver},
  title     = {Big Data: What is it? And what does it mean for science, economy and society?},
  series = {Informatik-Spektrum},
  volume    = {37},
  journal   = {Informatik-Spektrum},
  number    = {2},
  publisher = {Springer Verlag},
  address   = {Heidelberg},
  issn      = {0170-6012},
  doi       = {10.1007/s00287-014-0783-7},
  pages     = {85 -- 86},
  year      = {2014},
  language  = {en}
}
@misc{GuentherSuetterlinGoerlichetal.2014,
  author    = {G{\"u}nther, Oliver and S{\"u}tterlin, Sabine and G{\"o}rlich, Petra and Eckardt, Barbara and Mangelsdorf, Birgit and Horn-Conrad, Antje and Br{\"u}ckner, Cornelia and Lux, Nadine and Szameitat, Ulrike and Weller, Nina and Kagels, Melanie and Stahl, Anna-Lena and Temme, Jens and J{\"a}ger, Sophie and Kampe, Heike and Zimmermann, Matthias},
  title     = {Portal = Auf Humboldts Spuren: Feldforschung an der Universit{\"a}t Potsdam},
  number    = {02/2014},
  organization    = {Universit{\"a}t Potsdam, Referat f{\"u}r Presse- und {\"O}ffentlichkeitsarbeit},
  issn      = {1618-6893},
  doi       = {10.25932/publishup-44060},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-440607},
  pages     = {42},
  year      = {2014},
  abstract  = {Aus dem Inhalt: - Auf Humboldts Spuren: Feldforschung an der Universit{\"a}t Potsdam - Bevor es knallt - Kein Kommentar!},
  language  = {de}
}
@misc{GuentherWellerJaegeretal.2014,
  author    = {G{\"u}nther, Oliver and Weller, Nina and J{\"a}ger, Sophie and Grabsch, Gabriele and Eckardt, Barbara and S{\"u}tterlin, Sabine and Kampe, Heike and Szameitat, Ulrike and Lange, Ruth and Zimmermann, Matthias and Horn-Conrad, Antje},
  title     = {Portal = Investition in die Zukunft: Forschung f{\"u}r die digitale Gesellschaft},
  number    = {01/2014},
  organization    = {Universit{\"a}t Potsdam, Referat f{\"u}r Presse- und {\"O}ffentlichkeitsarbeit},
  issn      = {1618-6893},
  doi       = {10.25932/publishup-44271},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-442712},
  pages     = {42},
  year      = {2014},
  abstract  = {Aus dem Inhalt: - Investition in die Zukunft: Forschung f{\"u}r die digitale Gesellschaft - Doppelt stark - Eine f{\"u}r alles},
  language  = {de}
}
@misc{SchmidtEckardtMarszałeketal.2014,
  author    = {Schmidt, Anna and Eckardt, Barbara and Marszałek, Magdalena and G{\"o}rlich, Petra and Bieber, Sabine and Kampe, Heike and J{\"a}ger, Sophie and Horn-Conrad, Antje and G{\"u}nther, Oliver and Seckler, Robert and Sepp{\"a}, Silvana and Guske, Katja and Szameitat, Ulrike and Bezzenberger, Tilman and S{\"u}tterlin, Sabine and Weller, Nina and Klauke, Lars},
  title     = {Portal = Sommer an der Uni: Leere H{\"o}rs{\"a}le? Volle Terminkalender!},
  number    = {03/2014},
  organization    = {Universit{\"a}t Potsdam, Referat f{\"u}r Presse- und {\"O}ffentlichkeitsarbeit},
  doi       = {10.25932/publishup-44302},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-443021},
  pages     = {42},
  year      = {2014},
  abstract  = {Aus dem Inhalt: - Sommer an der Uni: Leere H{\"o}rs{\"a}le? Volle Terminkalender! - St{\"a}rken st{\"a}rken - Unter Stress},
  language  = {de}
}