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Prof. Dr. Reinhard Jung

Büro 52-6142
Müller-Friedberg-Strasse 6/8
9000 St. Gallen
+41 71 224 3141


  • Business Engineering; Daten- und Architekturmanagement; Social CRM; Social Media; Wertorientiertes IT-Management
  • Forschungsgebiete

  • Business Engineering
  • Social CRM
  • Digitale Transformation
  • Business/IT Alignment
  • Publikationen

    Wearables are used to help motivate individuals to trade their unhealthful behaviors for beneficial ones, thereby preventing the diseases of affluence, which are caused by a sedentary lifestyle. However, inconclusive study results regarding the effectiveness of wearables raise questions about the outcomes of using wearables. Research on the topic paints an ambiguous picture regarding the support wearables offer users in performing beneficial health-related behaviors, leaving the underlying mechanisms of wearable use and its outcomes unexplained. We seek to fill this gap in the literature by means of a critical realist study based on thirty narrative interviews with long-term users of wearables. By identifying seven generative mechanisms that drive users’ interactions with wearables and the subsequent cognitive and behavioral outcomes of that use, we answer the research question concerning how and why users’ interactions with wearables can facilitate positive behavioral and cognitive outcomes. The study makes several contributions to theory and practice.

    Physical inactivity is a global public health problem that poses health risks to individuals and imposes financial burdens on already strained healthcare systems. Wearables that promote regular physical activity and a healthy diet bear great potential to meet these challenges and are increasingly integrated into the healthcare system. However, extant research shows ambivalent results regarding the effectiveness of wearables in improving users’ health behavior. Specifically important is understanding users’ systematic behavior change through wearables. Constructive digitalization of the healthcare system requires a deeper understanding of why some users change their behavior and others do not. Based on self-leadership theory and our analysis of narrative interviews with 50 long-term wearable users, we identify four wearable use patterns that bring about different behav- ioral outcomes: following, ignoring, combining, and self-leading. Our study contributes to self-leadership theory and research on individual health information systems and has practical implications for wearable and healthcare providers.

    Wearables provide great opportunities for improving personal health, but research challenges their capacity to evoke behavioral change effectively. Realizing the full potential of wearables requires a better understanding of users’ behavior change processes. Based on self-efficacy theory, we investigate how wearables influence users’ perceptions of their self-efficacy and subsequent health behavior. Using narrative interviews with twenty-five long-term wearable users, we show that wearables can have both positive and negative effects on users’ perceptions of their self-efficacy and that these perceptions are subject to internal and external contexts, which can positively or negatively affect users’ compliance. We also find that the internal context may have a compounding or neutralizing effect on self-efficacy, despite an adverse external context. Our study shows the contextual and transient nature of self-efficacy, thus contributing to self-efficacy theory and research on wearables and offering practical design implications.

    Business ecosystems are dynamic structures of various actors who co-create value. By combining complementary and substitute services, these actors create integrated offerings. This paper proposes a conceptual model which supports the analysis of ecosystems by de- composing the offering into distinct modules. Each mod- ule represents a beneficiary-provider duality with a specific value proposition and activities to be performed. It further describes, how different service modules con- tribute and may change the network-level purpose. The research follows design science and was facilitated in a consortium setup to integrate practitioners’ insights. The paper contributes by developing design principles for a service configuration model, identifying relevant activities to describe service creation, providing a logic to configure distinct services into a whole, and introducing the concept of substitutes into the discussion.

    The use of persuasive technologies to improve users’ personal health outcomes are becoming increasingly pervasive in the health context. While early research on persuasive technologies highlighted the technology’s individual and societal potential, recent empirical evidence has hinted about the adverse effects of their use. However, little is known about the causes of, experiences with, and coping reactions to these adverse effects. To fill this gap, we conduct an exploratory study of wearable technologies’ adverse effects on users based on twenty-five narrative interviews. Employing a technostress lens, we find two distinct patterns–control stress and validation stress–that show that users experience these adverse effects by revolving through a circular process of technostress and relying on various mechanisms to cope with it. We describe contributions to the literature and implications for research and practice.

    Wearables gelten als Hoffnungsträger der heutigen Zeit: Sie sollen die individuelle Gesundheit von Nutzern verbessern, dadurch die Gesundheitskosten senken und die gesellschaftliche Wohlfahrt erhöhen. Doch wie steht es wirklich um die Potenziale von Wearables? Dieser Beitrag gibt Einblick in Nutzung und Auswirkungen von Wearables und zeigt Implikationen für den Einsatz im betrieblichen Gesundheitsmanagement auf.

    Digitale Nudges nutzen psychologische Prinzipien, um Nutzerverhalten im digitalen Raum zu beeinflussen. Um als Unternehmen wirksame digitale Nudges zu entwickeln, ist ein systematisches Vorgehen notwendig. Zu diesem Zweck wird in diesem Artikel die Digital Nudge Design-Methode vorgestellt, die das Entwickeln von digitalen Nudges in vier Phasen unterstützt. Die in den einzelnen Phasen angewendeten Techniken und Prozessschritte werden am Beispiel der Hero AG illustriert, die jüngst mit der Methode eigene digitale Nudges zur Nutzungsintensivierung einer Business Intelligence-Software entwickelt hat.

    Wearable Activity Trackers (WATs) are often ascribed the ability to reduce health risks by promoting physical activity and healthful eating habits. However, research has shown that their use does not always lead to behavior changes. Using the affordance lens, this study investigates how WATs’ material features facilitate behavioral outcomes, as users interpret WATs in light of their personal health-related goals. Using narrative interviews with twenty-five WAT users, we found two catego-ries of affordances—learning affordances and behavior-focused affordances—leading to three behavioral outcomes: behavior change, compliance change, and remaining with the status quo. Moreover, we identified four types of users (based on their goal configurations) that actualized different affordances and showed different behavioral outcomes. While some types of users fundamentally changed their daily routines as a result of using WATs, others simply complied with technology cues or did not change their behavior at all. Our results have several implications for re-search on WATs and WATs’ design.

    Business ecosystems have recently attracted a growing interest. Scholars are working on various approaches to describe actors, their relationships, and the implications of this dynamic organizational structure. Value co-creation among these interdependent actors, including customers, based on shared technologies, standards, and rules leads to the emergence of ecosystems. Using the design science research (DSR) approach, this paper presents and evaluates propositions for value co-creation leading to the emergence of business ecosystems. They provide structuring guidelines for academic research and build the basis for the design of a model aiming to explain the actors’ collaborative activities of value co-creation in ecosystems.

    Although Behavior Change Support Systems (BCSS) are gaining ground in the field of health in-terventions, we lack an empirically grounded understanding of how the behavior change tech-niques (BCTs) that are implemented in BCSS influence behavioral outcomes. Based on the self-efficacy theory, we conduct narrative interviews to investigate the process along which BCTs ap-plied in wearable activity trackers (WATs) influence users’ perceived self-efficacy and behaviors. We find three patterns that show how WATs’ BCTs feed certain information sources on which users build their self-efficacy beliefs. We identify a positive path (i.e., high self-efficacy, leading to com-pliant behavior) and a negative path (i.e., low self-efficacy, leading to non-compliant behavior) for each of these patterns. Our findings indicate that, under certain circumstances and/or at a cer-tain level of task difficulty, BCTs inflict adverse effects on users’ perceptions of their self-efficacy and their subsequent behavioral responses. Our results provide insights for theory and practice into how BCSS affect perceptions of self-efficacy and behavior change.



    Assistenzprofessor, Universität Bern (2002-2007)
    Professor, Universität Duisburg-Essen (2007-2009)


    Credit Suisse Award for Best Teaching


    Verband der Hochschullehrer für Betriebswirtschaft e.V.
    Schweizer Informatik Gesellschaft
    Gesellschaft für Informatik e.V.

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    Sekretariat: Angelika Schwarz