TY - JOUR A1 - Kampe, Heike A1 - Horn-Conrad, Antje A1 - Zimmermann, Matthias A1 - Scholz, Jana A1 - Himmler, Lena A1 - Mikulla, Stefanie A1 - Günther, Oliver A1 - Engel, Silke A1 - Agrofylax, Luisa A1 - Aust, Sarah-Madeleine T1 - Portal = Mentale Gesundheit N2 - „Es geht mir gut!“ Wann haben Sie diesen Satz zuletzt ganz ehrlich und aus vollem Herzen gesagt? Ich hoffe, es ist nicht allzu lange her. Oft fallen uns ja auf die Frage „Wie geht es dir?“ viele Gründe ein, warum es uns nicht gut geht. Und tatsächlich können unsichere Lebensbedingungen, belastende Ereignisse, problematische soziale Beziehungen oder körperliche Erkrankungen einen großen Einfluss darauf nehmen, wie es um unsere mentale Gesundheit steht. Und doch: Es gibt immer einen Weg aus der Krise und, wie Studien zeigen, gehen viele Menschen sogar gestärkt aus ihnen hervor. Sie können das Gute in ihrem Leben besser wahrnehmen als zuvor und Dankbarkeit dafür empfinden. Letztlich ist die Frage, wie es uns geht, zentral in jeder Phase unseres Lebens – sei es in der Kindheit, in Studium und Ausbildung, im Job und im Alter. Wir widmen daher dem seelischen Wohlbefinden eine Titelgeschichte in „Portal“. Was ist eigentlich die mentale Gesundheit? Das haben wir Prof. Dr. Petra Warschburger und Prof. Dr. Michael Rapp gefragt. Die beiden sind Expert*innen für psychische Belastungen sowohl in der Jugend als auch im Alter. Wie wirkt eigentlich Psychotherapie? Wie werden Zwangs- und soziale Störungen behandelt und warum hilft Sport bei Depressionen? Was macht Stress mit uns und wieso kann Mental Load die Psyche belasten? Welche Rolle spielt die Teamkultur für die mentale Gesundheit am Arbeitsplatz und wie trainieren MINT-Studierende ihre Resilienz? In dieser Ausgabe des Universitätsmagazins finden Sie auf all diese Fragen Antworten aus der Forschung. Außerdem bieten wir Ihnen einen Überblick über die zahlreichen Anlaufstellen an Ihrer Universität, die Sie dabei unterstützen, Ihre mentale Gesundheit zu erhalten. Ob Sucht, Prokrastination und Prüfungsangst, Konflikte im Team oder Schwerbehinderung – Beschäftigte und Studierende beraten Sie und haben praktische Angebote für den Alltag im Gepäck. Und nun wünsche ich Ihnen viel Spaß beim Lesen. T3 - Portal: Das Potsdamer Universitätsmagazin - 2/2023 Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-611437 SN - 1618-6893 IS - 2 ER - TY - JOUR A1 - Günther, Oliver A1 - Schüle, Manja A1 - Zurell, Damaris A1 - Jeltsch, Florian A1 - Roeleke, Manuel A1 - Kampe, Heike A1 - Zimmermann, Matthias A1 - Scholz, Jana A1 - Engbert, Ralf A1 - Elsner, Birgit A1 - Schlangen, David A1 - Agrofylax, Luisa A1 - Georgi, Doreen A1 - Weymar, Mathias A1 - Wagener, Thorsten A1 - Bookhagen, Bodo A1 - Eibl, Eva P. S. A1 - Korup, Oliver A1 - Oswald, Sascha Eric A1 - Thieken, Annegret A1 - van der Beek, Peter T1 - Portal Wissen = Exzellenz JF - Portal Wissen: Das Forschungsmagazin der Universität Potsdam N2 - Was nicht nur gut oder sehr gut ist, nennen wir gern exzellent. Aber was meint das eigentlich? Vom lateinischen „excellere“ kommend, beschreibt es Dinge, Personen oder Handlungen, die „hervor-“ oder „herausragen“ aus der Menge, sich „auszeichnen“ gegenüber anderen. Mehr geht nicht. Exzellenz ist das Mittel der Wahl, wenn es darum geht, der Erste oder Beste zu sein. Und das macht auch vor der Forschung nicht halt. Wer auf die Universität Potsdam schaut, findet zahlreiche ausgezeichnete Forschende, hervorragende Projekte und immer wieder auch aufsehenerregende Erkenntnisse, Veröffentlichungen und Ergebnisse. Aber ist die UP auch exzellent? Eine Frage, die 2023 ganz sicher andere Wellen schlägt als vielleicht vor 20 Jahren. Denn seit dem Start der Exzellenzinitiative 2005 gelten als – wörtlich – exzellent jene Hochschulen, denen es gelingt, in dem umfangreichsten Förderprogramm für Wissenschaft in Deutschland einen Zuschlag zu erhalten. Egal ob in Form von Graduiertenschulen, Forschungsclustern oder – seit Fortsetzung des Programms ab 2019 unter dem Titel „Exzellenzstrategie“ – ganzen Exzellenzuniversitäten: Wer im Kreis der Forschungsuniversitäten zu den Besten gehören will, braucht das Siegel der Exzellenz. In der gerade eingeläuteten neuen Wettbewerbsrunde der „Exzellenzstrategie des Bundes und der Länder“ bewirbt sich die Universität Potsdam mit drei Clusterskizzen um Förderung. Ein Antrag kommt aus der Ökologie- und Biodiversitätsforschung. Ziel ist es, ein komplexes Bild ökologischer Prozesse zu zeichnen – und dabei die Rolle von einzelnen Individuen ebenso zu betrachten wie das Zusammenwirken vieler Arten in einem Ökosystem, um die Funktion der Artenvielfalt genauer zu bestimmen. Eine zweite Skizze haben die Kognitionswissenschaften eingereicht. Hier soll das komplexe Nebeneinander von Sprache und Kognition, Entwicklung und Lernen sowie Motivation und Verhalten als dynamisches Miteinander erforscht werden – wobei auch mit den Erziehungswissenschaften kooperiert wird, um verknüpfte Lernund Bildungsprozesse stets mitzudenken. Der dritte Antrag aus den Geo- und Umweltwissenschaften nimmt extreme und besonders folgenschwere Naturgefahren und -prozesse wie Überschwemmungen und Dürren in den Blick. Die Forschenden untersuchen die Extremereignisse mit besonderem Fokus auf deren Wechselwirkung mit der Gesellschaft, um mit ihnen einhergehende Risiken und Schäden besser einschätzen sowie künftig rechtzeitig Maßnahmen einleiten zu können. „Alle drei Anträge zeichnen ein hervorragendes Bild unserer Leistungsfähigkeit“, betont der Präsident der Universität, Prof. Oliver Günther, Ph.D. „Die Skizzen dokumentieren eindrucksvoll unser Engagement, vorhandene Forschungsexzellenz sowie die Potenziale der Universität Potsdam insgesamt. Allein die Tatsache, dass sich drei schlagkräftige Konsortien in ganz unterschiedlichen Themenbereichen zusammengefunden haben, zeigt, dass wir auf unserem Weg in die Spitzengruppe der deutschen Universitäten einen guten Schritt vorangekommen sind.“ In diesem Heft schauen wir, was sich in und hinter diesen Anträgen verbirgt: Wir haben mit den Wissenschaftlerinnen und Wissenschaftlern gesprochen, die sie geschrieben haben, und sie gefragt, was sie sich vornehmen, sollten sie den Zuschlag erhalten und ein Cluster an die Universität holen. Wir haben aber auch auf die Forschung geschaut, die zu den Anträgen geführt hat und die schon länger das Profil der Universität prägt und ihr national wie international Anerkennung eingebracht hat. Wir stellen eine kleine Auswahl an Projekten, Methoden und Forschenden vor, um zu zeigen, warum in diesen Anträgen tatsächlich exzellente Forschung steckt! Übrigens: Auch „Exzellenz“ ist nicht das Ende der Fahnenstange. Immerhin lässt sich das Adjektiv exzellent sogar steigern. In diesem Sinne wünschen wir exzellentestes Vergnügen beim Lesen! T3 - Portal Wissen: Das Forschungsmagazin der Universität Potsdam [Deutsche Ausgabe] - 02/2023 Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-611440 SN - 2194-4245 IS - 02/2023 ER - TY - JOUR A1 - Günther, Oliver A1 - Schüle, Manja A1 - Zurell, Damaris A1 - Jeltsch, Florian A1 - Roeleke, Manuel A1 - Kampe, Heike A1 - Zimmermann, Matthias A1 - Scholz, Jana A1 - Mikulla, Stefanie A1 - Engbert, Ralf A1 - Elsner, Birgit A1 - Schlangen, David A1 - Agrofylax, Luisa A1 - Georgi, Doreen A1 - Weymar, Mathias A1 - Wagener, Thorsten A1 - Bookhagen, Bodo A1 - Eibl, Eva P. S. A1 - Korup, Oliver A1 - Oswald, Sascha Eric A1 - Thieken, Annegret A1 - van der Beek, Peter T1 - Portal Wissen = Excellence JF - Portal Wissen: The research magazine of the University of Potsdam N2 - When something is not just good or very good, we often call it excellent. But what does that really mean? Coming from the Latin word “excellere,” it describes things, persons, or actions that are outstanding or superior and distinguish themselves from others. It cannot get any better. Excellence is the top choice for being the first or the best. Research is no exception. At the university, you will find numerous exceptional researchers, outstanding projects, and, time and again, sensational findings, publications, and results. But is the University of Potsdam also excellent? A question that will certainly create a different stir in 2023 than it did perhaps 20 years ago. Since the launch of the Excellence Initiative in 2005, universities that succeed in winning the most comprehensive funding program for research in Germany have been considered – literally – excellent. Whether in the form of graduate schools, research clusters, or – since the program was continued in 2019 under the title “Excellence Strategy” – entire universities of excellence: Anyone who wants to be among the best research universities needs the seal of excellence. The University of Potsdam is applying for funding with three cluster proposals in the recently launched new round of the “Excellence Strategy of the German Federal and State Governments.” One proposal comes from ecology and biodiversity research. The aim is to paint a comprehensive picture of ecological processes by examining the role of single individuals as well as the interactions among many species in an ecosystem to precisely determine the function of biodiversity. A second proposal has been submitted by the cognitive sciences. Here, the complex coexistence of language and cognition, development and learning, as well as motivation and behavior will be researched as a dynamic interrelation. The projects will include cooperation with the educational sciences to constantly consider linked learning and educational processes. The third proposal from the geo and environmental sciences concentrates on extreme and particularly devastating natural hazards and processes such as floods and droughts. The researchers examine these extreme events, focusing on their interaction with society, to be able to better assess the risks and damages they might involve and to initiate timely measures in the future. “All three proposals highlight the excellence of our performance,” emphasizes University President Prof. Oliver Günther, Ph.D. “The outlines impressively document our commitment, existing research excellence, and the potential of the University of Potsdam as a whole. The fact that three powerful consortia have come together in different subject areas shows that we have taken a good step forward on our way to becoming one of the top German universities.” In this issue, we are looking at what is in and behind these proposals: We talked to the researchers who wrote them. We asked them about their plans in case their proposals are successful and they bring a cluster of excellence to the university. But we also looked at the research that has led to the proposals, has long shaped the university’s profile, and earned it national and international recognition. We present a small selection of projects, methods, and researchers to illustrate why there really is excellent research in these proposals! By the way, “excellence” is also not the end of the flagpole. After all, the adjective “excellent” even has a comparative and a superlative. With this in mind, I wish you the most excellent pleasure reading this issue! T3 - Portal Wissen: The research magazine of the University of Potsdam [Englische Ausgabe] - 02/2023 Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-611456 SN - 2198-9974 IS - 02/2023 ER - TY - JOUR A1 - Günther, Oliver A1 - Leopold, Henrik A1 - Mendling, Jan T1 - Learning from quality issues of BPMN models from industry BT - extended abstract JF - CEUR Workshop Proceedings N2 - Many organizations use business process models for documenting their business operations. In recent years, the Business Process Model and Notation (BPMN) evolved into the leading standard for process modeling. However, BPMN is complex: The specification offers a huge variety of different elements and often several representational choices for the same semantics. This raises the question of how well modelers can deal with these choices. Empirical insights into BPMN usage from the perspective of practitioners are still missing. We close this gap by analyzing a large set of BPMN 2.0 process models from practice. We found that particularly representational choices for splits and joins, the correct use of message flow, the proper decomposition of models, and the consistent labeling appear to be connected with quality issues. Based on our findings we give five recommendations how these issues can be avoided in the future. The work summarized in this extended abstract has been published in [LMG16]. KW - BPMN modeling guidelines KW - Modeling recommendations KW - Process model quality Y1 - 2016 UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-84996503810&origin=inward&txGid=98101b239363e3f806d7fadf22f788e2 SN - 1613-0073 VL - 1701 SP - 36 EP - 38 ER - TY - JOUR A1 - Günther, Oliver A1 - Leopold, Henrik A1 - Mendling, Jan T1 - Learning from quality issues of BPMN models from industry JF - IEEE Software N2 - Many organizations use business process models to document business operations and formalize business requirements in software-engineering projects. The Business Process Model and Notation (BPMN), a specification by the Object Management Group, has evolved into the leading standard for process modeling. One challenge is BPMN's complexity: it offers a huge variety of elements and often several representational choices for the same semantics. This raises the question of how well modelers can deal with these choices. Empirical insights into BPMN use from the practitioners' perspective are still missing. To close this gap, researchers analyzed 585 BPMN 2.0 process models from six companies. They found that split and join representations, message flow, the lack of proper model decomposition, and labeling related to quality issues. They give five specific recommendations on how to avoid these issues. Y1 - 2016 U6 - https://doi.org/10.1109/MS.2015.81 SN - 0740-7459 VL - 33 IS - 4 SP - 26 EP - 33 PB - Inst. of Electr. and Electronics Engineers CY - Los Alamitos ER - TY - JOUR A1 - Günther, Oliver T1 - Wir sind eine IdeenUni JF - Entrepreneurship education : das Potsdamer Modell der Gründungslehre und -beratung Y1 - 2015 SN - 978-3-7357-6095-1 SP - V EP - VI PB - BoD CY - Norderstedt ER - TY - JOUR A1 - Günther, Oliver T1 - Big Data: What is it? And what does it mean for science, economy and society? JF - Informatik-Spektrum Y1 - 2014 UR - http://www.scopus.com/inward/record.url?eid=2-s2.0-84897396415&partnerID=MN8TOARS U6 - https://doi.org/10.1007/s00287-014-0783-7 SN - 0170-6012 VL - 37 IS - 2 SP - 85 EP - 86 PB - Springer Verlag CY - Heidelberg ER - TY - JOUR A1 - Günther, Oliver T1 - Vorwort Y1 - 2013 SN - 978-3-941880-75-7 ER - TY - JOUR A1 - Günther, Oliver T1 - Die Vorstandsperspektive JF - Informatik-Spektrum Y1 - 2013 U6 - https://doi.org/10.1007/s00287-013-0743-7 SN - 0170-6012 VL - 36 IS - 6 SP - 505 EP - 507 PB - Springer CY - Heidelberg ER - TY - JOUR A1 - Fabian, Benjamin A1 - Kunz, Steffen A1 - Müller, Sebastian A1 - Günther, Oliver T1 - Secure federation of semantic information services JF - Decision support systems : DSS ; the international journal N2 - 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. KW - Information federation KW - Service orientation KW - Semantic web KW - Information security Y1 - 2013 U6 - https://doi.org/10.1016/j.dss.2012.05.049 SN - 0167-9236 VL - 55 IS - 1 SP - 385 EP - 398 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Krasnova, Hanna A1 - Veltri, Natasha F. A1 - Spengler, Klaus A1 - Günther, Oliver T1 - "Deal of the Day" Platforms what drives Consumer loyalty? JF - Business & information systems engineering : the international journal of Wirtschaftsinformatik N2 - "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. KW - Deal of the Day KW - Loyalty KW - Grounded theory KW - Structural equation modeling Y1 - 2013 U6 - https://doi.org/10.1007/s12599-013-0268-2 SN - 1867-0202 VL - 5 IS - 3 SP - 165 EP - 177 PB - Springer CY - Heidelberg ER - TY - JOUR A1 - Günther, Oliver A1 - van Putten, Bart-Jan A1 - Brecht, Franziska T1 - Challenges in Business Case Development and Requirements for Business Case Frameworks JF - Supporting Reuse in Business Case Development N2 - 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 Y1 - 2013 SN - 978-3-658-01170-3 U6 - https://doi.org/10.1007/978-3-658-01171-0_2 SP - 8 EP - 22 PB - Springer CY - Wiesbaden ER - TY - JOUR A1 - Fabian, Benjamin A1 - Kunz, Steffen A1 - Konnegen, Marcel A1 - Müller, Sebastian A1 - Günther, Oliver T1 - Access control for semantic data federations in industrial product-lifecycle management JF - Computers in industry : an international, application oriented research journal N2 - 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. KW - Access control KW - Data federation KW - Information integration KW - Product lifecycle management KW - Semantic data Y1 - 2012 U6 - https://doi.org/10.1016/j.compind.2012.08.015 SN - 0166-3615 VL - 63 IS - 9 SP - 930 EP - 940 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Winkler, Till J. A1 - Goebel, Christoph A1 - Bidault, Francis A1 - Günther, Oliver T1 - Information technology and business practieses in Germany BT - results from the 2011 bit survey JF - The UCLA Anderson Business and Information Technologies (BIT) Project Y1 - 2012 U6 - https://doi.org/10.1142/9789814390880_0005 SP - 81 EP - 114 PB - world scientific CY - Singapore ER - TY - JOUR A1 - Günther, Oliver A1 - Brecht, Franziska A1 - Eckhardt, Andreas A1 - Berger, Christian T1 - Corporate career presences on social network sites: an analysis of hedonic and utilitarian value JF - CHI '12 Proceedings of the SIGCHI Conference on Human Factors in Computing Systems N2 - 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 Y1 - 2012 SN - 978-1-4503-1015-4 U6 - https://doi.org/10.1145/2207676.2208408 SP - 2441 EP - 2450 PB - ACM CY - Texas ER - TY - JOUR A1 - Krasnova, Hanna A1 - Veltri, Natasha F. A1 - Günther, Oliver T1 - Self-disclosure and privacy calculus on social networking sites the role of culture intercultural dynamics of privacy calculus JF - Business & information systems engineering : the international journal of Wirtschaftsinformatik N2 - 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. KW - Social networking sites KW - Self-disclosure KW - Privacy KW - Trust KW - Culture Y1 - 2012 U6 - https://doi.org/10.1007/s12599-012-0216-6 SN - 1867-0202 VL - 4 IS - 3 SP - 127 EP - 135 PB - Springer CY - Heidelberg ER - TY - JOUR A1 - Günther, Oliver T1 - More politics in the GI - More GI in politics JF - Informatik-Spektrum Y1 - 2012 U6 - https://doi.org/10.1007/s00287-012-0657-9 VL - 35 IS - 6 SP - 397 EP - 398 ER -