Ruediger Zarnekow

Ruediger Zarnekow
Technische Universität Berlin | TUB · Chair for Information and Communication Management

Prof. Dr.

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302
Publications
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2,809
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January 2008 - December 2012

Publications

Publications (302)
Article
Full-text available
Cooperation is in many ways a meaningful behavior and understanding how cooperation can be fostered among humans is integral to solving the many global challenges we are facing. Thus, one of the major current developments exists in exploring the potential of gamification to engage people in cooperative activity. However, while the literature on thi...
Conference Paper
Full-text available
Since managing E-Procurement processes via technology is considered as crucial, the exploration of contemporary technology has become a chief concern for organizations. One technology that has emerged as a relevant medium to electronically conduct business is Augmented Reality (AR). However, while AR has taken a foothold in E-Commerce, it seems tha...
Article
Full-text available
Although 3D models are today indispensable in various industries, the adequate pricing of 3D models traded on online platforms, i.e., virtual 3D assets, remains vague. This study identifies relevant price determinants of virtual 3D assets through the analysis of a dataset containing the characteristics of 135.384 3D models. Machine learning algorit...
Preprint
BACKGROUND The effectiveness of virtual reality exposure therapy (VRET) in the treatment of anxiety disorders is well established. Several working mechanisms of VRET have been identified, whereby both emotional processing and the sense of presence play a key role. However, there are only few studies that contribute to our knowledge on the working m...
Article
Full-text available
Objective: Previous studies have shown positive treatment outcomes of e-mental health applications targeting depression. However, few applications provide personalized features. The aim of the present study is to ask for the user experience and acceptance of patients with depression and healthy adults, who tested the self-management app Self-admin...
Article
Purpose A current technological trend, which has gained even more traction recently due to the COVID-19 pandemic, is the use of augmented reality (AR) in shopping environments. AR is addressing contemporary challenges rooted in online shopping (e.g. in terms of experientiality and try-on) and is fundamentally reshaping consumers' experiences. The p...
Article
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Zusammenfassung Die Rolle von 3D-Modellen hat sich für Unternehmen, die sich auf die Wertschöpfung im Bereich der physischen und virtuellen Konsumgüter konzentrieren, in den vergangenen Jahren erheblich verändert. Für herstellende und Handelsunternehmen stellen virtuelle Produkte heute für die Entwicklung und den Vertrieb von physischen Gütern ein...
Conference Paper
Full-text available
Anxiety disorders are one of the most common psychiatric disorders. Exposure therapy has proven to be a suitable way of treatment for anxiety symptoms. Currently, there are ambitions to digitalise exposure therapy based on Virtual Reality (VR). While a variety of studies verify the effectiveness of Virtual Reality Exposure Therapy (VRET), less rese...
Chapter
Depression is widespread and, despite a wide range of treatment options, causes considerable suffering and disease burden. Digital health interventions, including self-monitoring and self-management, are becoming increasingly important to offer e-mental health treatment and to support the recovery of people affected. SELFPASS is such an application...
Preprint
BACKGROUND Using mobile health technology has sparked a broad engagement of data science and machine learning methods to leverage the complex, assorted amount of data for mental health purposes. Despite many studies, there is a reported underdevelopment of user engagement concepts, and the desire for high accuracy or significance has shown to lead...
Chapter
Cooperation between individuals is a core essence of organizing. However, as witnessed in several organizations, cooperation and collaboration are difficult to cultivate, and it might not emerge organically either. One of the primary hurdles related to lack of cooperation is that people often do not work towards mutual goals but are rather motivati...
Conference Paper
Full-text available
Novel digital technologies are affording ways to superimpose perceptual information (be it auditory, visual , haptic or olfactory) onto our reality, e.g. in retail environments. These technologies that aim to enhance reality are generally called Augmented Reality (AR) technologies. Today, the field of research focused on AR retail has evolved to ma...
Conference Paper
Full-text available
Mobile health startups develop innovative, sensor-based solutions that continuously collect health data. To generate added value from these large amounts of data, an integration of the solutions into the healthcare system is essential. In this context, the collaboration between interdependent healthcare stakeholders is required which can be enabled...
Preprint
Full-text available
Background: Using smartphones and wearable sensor technology has sparked a broad engagement of data science and machine learning methods to leverage the complex, assorted amount of data. Despite verified processes, there is a reported underdevelopment of user engagement concepts, and the desire for high accuracy or significance has shown to lead to...
Preprint
Full-text available
Background: Using smartphones and wearable sensor technology has sparked a broad engagement of data science and machine learning methods to leverage the complex, assorted amount of data. Despite verified processes, there is a reported underdevelopment of user engagement concepts, and the desire for high accuracy or significance has shown to lead to...
Chapter
Stress is a major health problem in this century, and it is associated with adverse health consequences. Its prevention and management are a great challenge, and only a minority of the affected persons receive treatment. New digital technologies offer opportunities to provide effective psychological interventions to address the negative consequence...
Chapter
New impulses for the development of an electronic health record in Germany were given with passing the Terminservice- und Verordnungsgesetz. Looking into adjacent legislative work, we find that the existent international standard for Fast Healthcare Interoperability Resources (FHIR) is not sufficient and consequently, German FHIR objects (gFR) are...
Conference Paper
Full-text available
Due to the general gamification of our culture and society as well as the proliferation of games in our everyday activities, people are increasingly looking at games and gamification as a source for cooperation and other prosocial behaviors. However, not all game features lead to increased cohesion, cooperation or collaboration between people. Whil...
Conference Paper
The blockchain technology is one of the most prominent innovations in recent years. Besides its use as a cryptocurrencies wide-ranging use cases are announced and its potential to disrupt various industries is recognized. Due to its technological characteristics, it may challenge existing platforms by disintermediation. These platforms, like Amazon...
Conference Paper
Mobile sensor-based health technology (MSHT) enables an unobtrusive and automatic collection of objective health data. Thereby it has the potential to improve medical service provision and meet the ever increasing challenges that the healthcare system is facing today. There are already various attempts to integrate recent technological advancements...
Article
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Behavioral intervention strategies can be enhanced by recognizing human activities using eHealth technologies. As we find after a thorough literature review, activity spotting and added insights may be used to detect daily routines inferring receptivity for mobile notifications similar to just-in-time support. Towards this end, this work develops a...
Conference Paper
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The markets for virtual assets, goods, and products are currently witnessing a tremendous change. While the business model of virtual world and game developers continuously shifts to free-to-play, the diffusion of virtual and augmented reality technology leads to an increasing relevance of virtual assets for manufacturer and retail firms as the bas...
Conference Paper
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Despite their extensive functionality in the area of physiological data collection and high user adoption, commercial fitness trackers are rarely used in a medical context to improve costly patient care. Therefore, this paper investigates under which circumstances fitness trackers are applicable to give reasonable behavior change advice for patient...
Article
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Zusammenfassung IT-Servicemanagement (ITSM) stellt seit Jahren ein relevantes und spannendes Themenfeld dar, welches sowohl Unternehmen als auch Forscher auf vielfältige Weise beschäftigt. Die Grundlage des Beitrags stellt die Analyse von 602 Artikeln der letzten 15 Jahre dar. Im Rahmen der Untersuchung wurden diese Fachartikel, Konferenz- und Zeit...
Article
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Zusammenfassung IT-Servicemanagement (ITSM) stellt für Unternehmen nach wie vor ein relevantes Thema dar, welches sowohl IT-Manager als auch CIOs von mittelständischen und Großunternehmen im Hinblick auf verschiedenartige Fragestellungen, wie ITSM-Einführung, Zertifizierung, Automatisierung, stärkere Kundenorientierung, Einsatz von KI oder Big Data...
Article
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The literature shows that providing information about alternatives and arguments in development processes may increase stakeholders’ perceived transparency of the process and the results’ acceptance. In development processes with a high number of stakeholders this has been shown to be one of the main prerequisites for project success. According to...
Chapter
Information technology (IT) advancements enabled new delivery models (i.e. Cloud Computing), thereby facilitating the emergence of new business models in the IT industry, such as Cloud platform ecosystems. With their growing acceptance and diffusion in practice, we need a deeper understanding of their IT capabilities in order to implement their bus...
Chapter
This introductory article provides basic definitions, concepts and theories surrounding gamification that are used throughout the remainder of this book. It distinguishes gamification from other research areas, such as gameful design and serious games. It then goes on to introduce common game mechanics, achievement systems, game dynamics and aesthe...
Article
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The acceleration of technical change in the fast moving electronics market increases the uncertainty and risk for IT providers. Influenced by new IT provisioning concepts such as cloud computing, providers are looking to identify stable guidelines and success factors within existing and new business models. The authors have conducted an intensive a...
Article
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Organizations increasingly recognize that environmental sustainability is an urgent problem. Green information systems (Green IS) initiatives can assist organizations in reaching their environmental goals by providing the ability to reduce the environmental impacts of information technology (IT) manufacturing, operations and disposal; facilitate tr...
Conference Paper
Full-text available
The growing proliferation of cloud platform ecosystems demands a deeper understanding of the capabilities that help existing and emerging platform providers to be successful by creating and appropriating value. This multiple case study of four cloud platform providers (three large, one SME) instantiates Rai and Tang's (2014) framework of dyadic IT...
Article
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Background: Cloud computing promises to essentially improve healthcare delivery performance. However, shifting sensitive medical records to third-party cloud providers could create an adoption hurdle because of security and privacy concerns. Objectives: This study examines the effect of confidentiality assurance in a cloud-computing environment on...
Article
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Editorial for the Special Issue on Rural and Remote ICT: Broadband Rural, Regional and National Impacts Download url: http://journal.acs.org.au/index.php/ajis/article/view/1474/745
Article
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The utilization of deployment synergies across infrastructure networks of different industries has been identified as a key to improve the broadband business case. Thus, an increasing number of broadband plans require owners of physical infrastructures such as the electricity, pipeline, highway and railroad networks to host broadband infrastructure...
Chapter
Der Bezug von Cloud-Services kann weitreichende Prozessveränderungen im IT-Servicemanagement (ITSM) zur Folge haben. Dabei ist aus Anwendersicht vor allem die zunehmende Bedeutung der Phasen Service Strategy und Service Design hervorzuheben. Demgegenüber ist zu erwarten, dass im Rahmen des Cloud Computing die Phasen Service Transition und Service O...
Conference Paper
Full-text available
Information technology (IT) advancements enabled new delivery models (i.e. Cloud Computing), thereby facilitating the emergence of new business models in the IT industry, such as Cloud platform ecosystems. With their growing acceptance and diffusion in practice, we need a deeper understanding of their IT capabilities in order to implement their bus...
Article
Cloud Computing ermöglicht es Anwendern, IT-Systeme nicht mehr selber zu betreiben, sondern diese als Dienstleistung von externen Anbietern über das Internet zu beziehen. An die Stelle hoher initialer Fixkosten treten beim Cloud Computing stündliche oder sogar minütliche Mietkosten. Diese Studie beschäftigt sich mit der Bereitstellung von virtuelle...
Article
With millions of registered users Airbnb conciliates rooms from C2C in the share economy. To get landlords and tenants together it is crucial that they trust each other. Therefore, users can verify their personality, write comments about each other and the tenants can rate the rooms they rented. With a dataset of more than one million profiles we e...
Article
Social networking services are among the most applied internet services. Studies concerning post-adoption behavior have focused usage motivations, such as usefulness and enjoyment. Nevertheless, the understanding of consumer behavior in the context of these services is still very limited. Especially, there is no model that integrates the highly rel...
Conference Paper
Full-text available
Due to demographic changes, health information technologies comprising electronic health records (EHR), electronic medical records (EMR), personal health records (PHR), remote patient monitoring (RPM) and other healthcare related websites are gaining significant relevance. They constitute a great opportunity for efficiency gains and further benefit...
Conference Paper
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In order to overcome the lack of transparency of the SaaS market, electronic marketplaces (EMs) emerge in practice. To the best of our knowledge, only little research has been carried out in this specific domain. As it is of outmost importance to understand the value offerings, the goal of this paper is to develop a typology of EMs considering the...
Conference Paper
Full-text available
Transparency is a well-articulated requirement in policy and project development processes. To the present time, we mostly see approaches documenting the workflow or the results of these processes, but lack a representation of the discourse which produced the results. However, the arguments which have been put forward in the development of a policy...
Data
Full-text available
Transparency is a well-articulated requirement in policy and project development processes. To the present time, we mostly see approaches documenting the workflow or the results of these processes, but lack a representation of the discourse which produced the results. However, the arguments which have been put forward in the development of a policy...
Conference Paper
The development of gamification within non-game information systems as well as serious games has recently gained an important role in a variety of business fields due to promising behavioral or psychological improvements. However, industries still struggle with the high efforts of implementing gameful affordances in non-game systems. In order to de...
Article
Free to play is supposed to be the future of monetizing games. On one side user can access the game for free, thus it is distributed quickly. On the other side the game generates turnover by user spending real money on virtual items. Even though only a small number of players buy in-game items, it seems to be a very successful revenue model for gam...
Book
Bis zu 80 % der Internetnutzer wollen wegen mangelnden Vertrauens keine Angebote der Share Economy nutzen. Mit dieser Studie sollen Einblicke in die Vertrauensbildung in der Share Economy gewonnen werden. Hierzu wurden Faktoren von Online-Profilen untersucht und evaluiert, wie wichtig diese bei der Vertrauensbildung sind. Die Studienergebnisse zeig...
Article
Mit der wachsenden Bedeutung von Informationstechnologien nimmt deren Einfluss auf Ökonomie, Ökologie und Gesellschaft zu. In Anbetracht steigender Kosten für Ressourcen und einer zunehmenden globalen Vernetzung sind nachhaltige Konzepte für das IT-Servicemanagement erforderlich. Während das Konzept der Nachhaltigkeit in anderen industrialisierten...
Article
Cloud Computing stellt einen fundamentalen Trend in der IT-Branche dar, der bei IT-Entscheidern sowohl positive als auch kritische Reaktionen hervorruft. Insbesondere werden der praktische Nutzen, die Datensicherheit sowie das für Unternehmen spezifische Anwendungsszenario nach wie vor kontrovers diskutiert. Der Bezug von Cloud-Services kann weitre...
Article
Architekturparadigmen der IT stehen stets im Spannungsfeld von Zentralisierung und Dezentralisierung. Im Rahmen des Cloud Computing vollzieht sich aktuell eine Hinwendung zu stärker zentralisierten Architekturen. Die Anwender von IT-Dienstleistungen werden dabei weitgehend von der kapitalintensiven Beschaffung der Hard- und Software sowie der Vorha...
Article
Virtuelle Welten wie Second Life haben das Potenzial, die Virtualisierung und Mediatisierung sozialer Interaktionen weiter voranzutreiben. Der vorliegende Beitrag analysiert auf Basis einer Übertragung des 4C-Net-Business-Modells nach Wirtz die Wertschöpfungsmöglichkeiten sozialer, virtueller Welten am Beispiel Second Life. Dabei werden Geschäftsmo...
Conference Paper
Full-text available
In a multi-stakeholder cloud computing environment, data access control is of essential importance. Nowadays, it is usually handled in and deployed by every single cloud service on its own which makes the configuration of fine-grained access privileges cumbersome and economically expensive. In this paper, we introduce a novel cloud ecosystem archit...
Article
Cloud computing represents a fundamentally new trend in the information technology (IT) industry. Especially the practical benefits and the company-specific use cases have become subject of controversial debate. While information systems (IS) play a crucial function in organizations, IT service management (ITSM) is of increasing importance to IT or...
Chapter
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This paper focusses on conceptualizing the quantification of the Carbon Footprint of IT-Services (CFIS). Initially, the increasing relevance of Carbon Footprint to the IS-community is pointed out. Based on literature review, we pre-sent related work that describes underlying concepts e.g. the Carbon Footprint of Products, Life Cycle Assessment as w...
Article
Vor wenigen Jahren galten virtuelle Welten als höchst potenzialreiche Technologie für neue Interaktions- und Geschäftsmöglichkeiten. Viele Unternehmen engagierten sich, um die Möglichkeiten des virtuellen Raums als Werbemedium, für neuartige Dienstleistungen, für den Aufbau von Communitys, aber auch für den unternehmensinternen Einsatz zu erkunden....
Conference Paper
Full-text available
The cloud computing paradigm promises to significantly improve the transfer of crucial medical records during medical service delivery. However, since cloud computing technology is still known for unsolved security and privacy challenges, severe concerns could prevent patients and medical workers from accepting such an application scenario. Owing t...
Article
Der zur Energiewende notwendige Umbau des nationalen Energiesystems hin zu energie- und kosteneffizienten »intelligenten« Versorgungsinfrastrukturen birgt enorme Herausforderungen, aber auch eine Vielzahl von Möglichkeiten für die am Markt beteiligten Akteure. Auch für IT-Dienstleister, insbesondere für die Betreiber von Rechenzentren als industrie...
Chapter
Der Markt für Informations- und Kommunikationstechnologien unterliegt traditionell einer hohen Innovationsdynamik. Die Wirtschaftsinformatik stellt dies vor die Herausforderung, regelmäßig neue vermeintliche oder tatsächliche sogenannte Megatrends beobachten und hinsichtlich ihrer tatsächlichen Potentiale beurteilen zu müssen. Cloud Computing stell...
Article
PURPOSE: This paper examines the applicability of the analytic hierarchy process AHP model to solve the decision problem of a provider selection for a cloud-based IT service management ITSM solution. Furthermore, critical selection criteria for the process of provider selection are identified.DESIGN/METHODOLOGY/APPROACH: This article describes an a...
Article
Die Migration in die Cloud stellt an IT-Dienstleister hohe Anforderungen, verspricht aber auch eine gesteigerte Effizienz. Ein Spezialfall ist eine Community Cloud, bei der IT-Dienstleister Ressourcen vereinen und Dienste gemeinsam anbieten, um mit kooperativem Lastmanagement organisationsübergreifend Kosten zu verringern. Aufgrund besonderer Anfor...
Article
Full-text available
Business & Information Systems Engineering (BISE) is at a turning point. Planning, designing, developing and operating IT used to be a management task of a few elites in public administrations and corporations. But the continuous digitization of nearly all areas of life changes the IT landscape fundamentally. Success in this new era requires to put...
Article
Full-text available
Die Wirtschaftsinformatik steht heute am Wendepunkt. Ist die Planung, Entwicklung und der Betrieb von Informations- und Telekommunikationssystemen (ITK) bisher eine Managementaufgabe einiger „Eliten“ in Verwaltung und Wirtschaft gewesen, so führt die zunehmende Durchdringung aller Lebensbereiche mit ITK zu einer Veränderung der gesamten ITK-Landsch...
Conference Paper
The concepts of Life Cycle Assessment (LCA) and Carbon Footprint (CF) represent powerful tools in aiding towards the reduction of an organization’s environmental impacts. Because of the influence of information and communication technology (ICT) on worldwide environmental impacts, these concepts are particularly significant in this field and receiv...
Conference Paper
Digital platforms are re-shaping organizations and markets. In particular, telecommunication companies are challenged to control digital platforms and to engage generative ecosystems. In order to provide a point of departure for future research, we conduct an explorative case study analysis to determine the state of the art of business models of te...