63 research outputs found

    Living in a car-free housing development. Motivations and mobility practices of residents in nine developments in Switzerland and Germany

    Get PDF
    Cars and the system of infrastructures and urban forms built to support them have many negative impacts such as pollution, greenhouse gas emissions and a high land use, particularly in cities. In response to this, car- free housing developments have emerged in different Western European cities. In these real-world laboratories of a mobility transition, residents commit to living without a private car in the long term. To overcome a car- centred society, it is important to understand why some households choose to voluntarily live car-free and move to these developments, and how they are mobile. This thesis represents the first large-scale study of car-free housing residents. It analysed nine developments, five in Switzerland (Burgunder in Bern, FAB-A in Biel/Bienne, Giesserei in Winterthur, Oberfeld in Oster- mundigen and Sihlbogen in Zurich) and four in Germany (Klein Borstel and Saarlandstraße in Hamburg, Stellwerk60 in Cologne and Weißenburg in MĂŒnster). These sites include a diversity of car-free developments in terms of different dwelling types (even though six of them represent forms of collaborative housing), sizes, ages and localisations. A mixed methods approach was adopted to study the residents’ profiles, motivations and practices as well as their evaluation of the spatial and social context necessary to live car-free. A self- administered questionnaire survey (n=500) carried out in all nine developments was combined with in-depth interviews (n=50) conducted in six of them. The analyses show that the residents have very particular profiles. They have a high level of education and ethical or altruistic values are very important to them. Nearly half of the households are families. Almost all of them live deliberately without a private car and this does not represent a sacrifice for them. Their motiva- tions for living car-free refer mainly to a combination of practical and personal reasons. The first type of moti- vation includes no need for a car and the availability of alternative transport modes, the second mainly revolves around ecological motivations. Conversely, the affordability of a car as well as health or age reasons are of very little importance. The motivations to move to a car-free housing development are similar, practical reasons such as the accessibility of the location are highlighted, but social aspects such as living in a community are important, too, particularly in the cooperative housing projects. The analyses of the residents’ mobility capital and practices revealed four types of strategies how to be mobile without owning a private car. First, car-free housing residents rely on (augmented) alternative transport modes, i.e. the bicycle (with a trailer or as an e- or a cargo bike), public transport and walking. Second, they use mobility and transport services, including taxis and delivery services, but also limited use of (carsharing or other borrowed) cars. Furthermore, digitalisation facilitates car-free living, especially smartphone apps al- lowing access to all mobility forms and supporting their use. Third, the inhabitants favour car-less accessibility and, thus, proximity often influences the localisation of their everyday activities. Fourth, the community of car-free residents appeared important, too. On a practical level, neighbourly help or common activities in the development facilitate car-free living, but, beyond that, the community also empowers the residents and “nor- malises” this way of life. Despite clear general tendencies for motivations and practices, an important diversity of car-free residents exists. A typology of lifestyles allowed us to uncover them. Based on their values and motivations to live car- free as well as on their mobility practices, six lifestyles of car-free residents were found: ecological, pragmatic and utilitarian cyclists and the same three types of multimodals, ecological, pragmatic and utilitarian. Finally, a certain spatial and social context is also necessary to live car-free. On the one hand, it consists of transport and other infrastructures such as local supply or spaces for common activities in the development. On the other hand, it includes immaterial aspects, particularly social norms allowing to consider car-freeness. In brief, a system of car-free mobility needs to be set up to overcome automobility. It consists of various indi- vidual strategies, but also of a spatial and social context allowing car-free living. -- Les voitures et le systĂšme d’infrastructures urbaines construit autour d’elles ont de nombreux impacts nĂ©gatifs tels que la pollution, les Ă©missions de gaz Ă  effet de serre et une importante consommation d’espace, en parti- culier dans les villes. En rĂ©ponse Ă  cette problĂ©matique, des habitats sans voitures ont Ă©mergĂ© dans diffĂ©rentes villes d’Europe occidentale. Dans ces laboratoires d’une transition vers une mobilitĂ© durable, les habitant·e·s s’engagent Ă  vivre sans voiture sur le long terme. Pour surmonter une sociĂ©tĂ© basĂ©e sur la voiture, il est impor- tant de comprendre pourquoi certains mĂ©nages choisissent volontairement de vivre sans voiture et d’emmĂ©na- ger dans ces habitats, ainsi que les caractĂ©ristiques de leur mobilitĂ©. Cette thĂšse reprĂ©sente la premiĂšre Ă©tude Ă  grande Ă©chelle de rĂ©sident·e·s d’habitats sans voitures. Elle a ana- lysĂ© neuf quartiers, cinq en Suisse (Burgunder Ă  Berne, FAB-A Ă  Bienne, Giesserei Ă  Winterthour, Oberfeld Ă  Ostermundigen et Sihlbogen Ă  Zurich) et quatre en Allemagne (Klein Borstel et Saarlandstraße Ă  Hambourg, Stellwerk60 Ă  Cologne et Weißenburg Ă  MĂŒnster). Ils couvrent la diversitĂ© des habitats sans voitures en termes de types de logements (six d’entre eux reprĂ©sentent des formes d’habitat collaboratif), de taille, d’ñge et d’emplacements. Une approche basĂ©e sur des mĂ©thodes mixtes a Ă©tĂ© adoptĂ©e afin d’étudier le profil des mĂ©nages, leurs motivations, leurs pratiques, ainsi que leur Ă©valuation du contexte spatial et social nĂ©cessaire pour vivre sans voiture. Une enquĂȘte par questionnaire auto-administrĂ© (n=500) rĂ©alisĂ©e dans les neuf quartiers considĂ©rĂ©s a Ă©tĂ© combinĂ©e avec des entretiens approfondis (n=50) menĂ©s dans six d’entre eux. Les rĂ©sultats des analyses dĂ©montrent que les habitant·e·s ont des profils particuliers Ă  plusieurs Ă©gards. Ils et elles ont souvent un haut niveau de formation et accordent une grande importance Ă  des valeurs Ă©thiques ou altruistes. Presque la moitiĂ© des mĂ©nages sont des familles. Quasiment tous les mĂ©nages vivent volontai- rement sans voiture sans que cela ne reprĂ©sente un sacrifice pour eux. Leurs motivations Ă  vivre sans voiture se rĂ©fĂšrent surtout Ă  une combinaison de raisons pratiques et personnelles. Le premier type de motivations inclut le fait de ne pas avoir besoin d’une voiture ainsi que la disponibilitĂ© de modes de transports alternatifs tandis que le deuxiĂšme type reprĂ©sente principalement des motivations Ă©cologiques. Au contraire, les raisons financiĂšres ainsi que de santĂ© ou d’ñge n’ont qu’une trĂšs faible importance. Les motivations pour emmĂ©nager dans un habitat sans voitures sont similaires. Les raisons pratiques telles que l’accessibilitĂ© de la localisation, mais aussi des aspects sociaux tel que le fait de vivre en communautĂ©, en particulier dans les coopĂ©ratives, sont mis en Ă©vidence. L’analyse du capital de mobilitĂ© et des pratiques des rĂ©sident·e·s a rĂ©vĂ©lĂ© quatre types de stratĂ©gies permettant d’ĂȘtre mobile sans possĂ©der une voiture. PremiĂšrement, les habitant·e·s s’appuient sur des moyens de trans- ports alternatifs (amĂ©liorĂ©s), en particulier le vĂ©lo (avec remorque, en tant que vĂ©lo-cargo ou avec assistance Ă©lectrique), les transports publics et la marche. DeuxiĂšmement, ils et elles recourent Ă  des services de mobilitĂ©, comme des taxis et des services de livraisons, mais aussi Ă  l’utilisation ponctuelle d’une voiture partagĂ©e. De plus, la numĂ©risation facilite la vie sans voitures, particuliĂšrement les applications pour smartphones qui per- mettent l’accĂšs Ă  de nombreuses formes de mobilitĂ© et facilitent leur usage. TroisiĂšmement, les habitant·e·s favorisent l’accessibilitĂ© sans voiture, et donc souvent la proximitĂ© pour leurs activitĂ©s quotidiennes. QuatriĂš- mement, la communautĂ© d’habitant·e·s apparait Ă©galement comme un facteur important. Au niveau pratique, l’aide de voisinage et les activitĂ©s communes dans l’habitat facilitent le fait de vivre sans voiture. De plus, l’esprit de communautĂ© encourage aussi les habitant·e·s et « normalise » cette maniĂšre de vivre. MalgrĂ© des tendances gĂ©nĂ©rales clairement dĂ©finies concernant les motivations et les pratiques, une diversitĂ© d’habitant·e·s existe. Une typologie des modes de vie permet de les mettre en lumiĂšre. Sur la base des valeurs et des motivations des habitant·e·s Ă  vivre sans voiture ainsi que de leurs pratiques de mobilitĂ©, six modes de vie ressortent de l’analyse : les cyclistes Ă©cologiques, pragmatiques ou utilitaristes ainsi que les mĂȘmes trois types de multimodaux, Ă©cologiques, pragmatiques et utilitaristes. Enfin, un contexte spatial et social spĂ©cifique est Ă©galement nĂ©cessaire pour vivre sans voiture. Il consiste d’une part en des infrastructures liĂ©es Ă  la fois aux transports mais aussi Ă  l’approvisionnement local ou aux activitĂ©s communes dans l’habitat. D’autre part, le contexte inclut des aspects immatĂ©riels, en particulier des normes sociales qui permettent d’envisager une vie sans voiture. En rĂ©sumĂ©, un systĂšme de mobilitĂ© sans voiture doit ĂȘtre mis en place pour surmonter l’automobilitĂ©. Il consiste Ă  la fois en des stratĂ©gies individuelles variĂ©es et en un contexte spatial et social permettant de vivre sans voiture. -- Autos und das fĂŒr sie aufgebaute System an Infrastrukturen haben viele negative Auswirkungen, wie Schad- stoff- und Treibhausgasemissionen und einen hohen Bodenverbrauch, insbesondere in StĂ€dten. Als Antwort darauf sind in verschiedenen westeuropĂ€ischen StĂ€dten autofreie Wohnsiedlungen entstanden. In diesen Re- allaboren einer MobilitĂ€ts-Transformation verpflichten sich die Bewohner*innen dazu, langfristig ohne eige- nes Auto zu leben. Um eine autodominierte Gesellschaft zu ĂŒberwinden ist es wichtig zu verstehen, weshalb Haushalte sich freiwillig dazu entscheiden autofrei zu leben und in diese Siedlungen zu ziehen, und wie sie mobil sind. Diese Doktorarbeit beinhaltet die erste gross angelegte Studie von Bewohner*innen autofreier Siedlungen. Sie hat neun davon analysiert, fĂŒnf in der Schweiz (Burgunder in Bern, FAB-A in Biel, Giesserei in Winterthur, Oberfeld in Ostermundigen und Sihlbogen in ZĂŒrich) und vier in Deutschland (Klein Borstel und Saarland- straße in Hamburg, Stellwerk60 in Köln und Weißenburg in MĂŒnster). Diese beinhalten die unterschiedlichen Arten von autofreien Wohnsiedlungen bezĂŒglich Wohnform (auch wenn sechs davon Genossenschaften oder Wohnprojekte sind), Grösse, Alter und Lage. Ein Mixed-Methods-Ansatz wurde angewandt um die Profile, Motivationen und Praktiken der Bewohner*innen zu erforschen, sowie deren EinschĂ€tzung des notwendigen rĂ€umlichen und sozialen Kontexts um autofrei zu leben. Eine Befragung mit einem selbst auszufĂŒllenden Fra- gebogen (n=500) in allen neuen Siedlungen wurde kombiniert mit ausfĂŒhrlichen Interviews (n=50), die in sechs Siedlungen gefĂŒhrt wurden. Die Resultate zeigen, dass die Bewohner*innen sich durch sehr spezifische Profile auszeichnen. Sie verfĂŒgen ĂŒber ein hohes Ausbildungsniveau und ethische oder altruistische Werte sind ihnen am wichtigsten. Beinahe die HĂ€lfte der Haushalte sind Familien. Fast alle von ihnen leben freiwillig ohne eigenes Auto und dies bedeu- tet kein Verzicht fĂŒr sie. Ihre Motivationen autofrei zu leben beziehen sich hauptsĂ€chlich auf eine Kombination aus praktischen und persönlichen GrĂŒnden. Erstere beinhalten keinen Bedarf fĂŒr ein Auto und die VerfĂŒgbar- keit von alternativen Transportmitteln, letztere vorwiegend ökologische Motivationen. Finanzielle sowie Ge- sundheits- und AltersgrĂŒnde spielen hingegen nur fĂŒr sehr wenige Haushalte eine Rolle. Die Motivationen, in eine autofreie Wohnsiedlung zu ziehen, sind Ă€hnlich. Praktische GrĂŒnde wie die Erreichbarkeit der Lage der Siedlung werden hervorgehoben, aber auch soziale Aspekte wie das Gemeinschaftsleben, insbesondere in den Genossenschaften. Die Analysen des MobilitĂ€tskapitals und der MobilitĂ€tspraktiken der Bewohner*innen zeigen vier Arten von Strategien, die ihnen ermöglichen, ohne eigenes Auto mobil zu sein. Erstens bauen die Bewohner*innen auf die Nutzung von (erweiterten) alternativen Transportformen, d.h. das Velo (mit AnhĂ€nger oder in Form eines E- oder Cargo-Bikes), öffentliche Verkehrsmittel und zu Fuss gehen. Zweitens nutzen sie MobilitĂ€tsdienstleis- tungen wie Taxis und Lieferdienste, aber auch punktuell Carsharing- oder andere Leih-Autos. Ausserdem ver- einfacht die Digitalisierung autofrei leben, insbesondere Smartphone-Apps, welche Zugang zu allen Mobili- tĂ€tsformen ermöglichen und deren Nutzung unterstĂŒtzen. Drittens favorisieren die Bewohner*innen autofreie Erreichbarkeit und daher fĂŒr ihre AlltagsaktivitĂ€ten oft Ziele in der NĂ€he. Viertens erschien die Gemeinschaft der Bewohner*innen auch als wichtig. Auf der praktischen Ebene erleichtern Nachbarschaftshilfe oder Ge- meinschaftsaktivitĂ€ten in der Siedlung autofreies Leben, darĂŒber hinaus stĂ€rkt die Gemeinschaft die Bewoh- ner*innen auch und „normalisiert“ diese Lebensform. Obschon fĂŒr Motivationen und Praktiken klare Tendenzen bestehen, existiert eine grosse Vielfalt an Bewoh- ner*innen. Eine Lebensstil-Typologie ermöglicht es, diese hervorzuheben. Basierend auf den Wertvorstellun- gen und Motivationen der Bewohner*innen, autofrei zu leben, wie auch auf deren MobilitĂ€tspraktiken, wurden sechs Lebensstile gefunden: ökologische, pragmatische und nutzenorientierte Velofahrende sowie die selben drei Typen von Multimodalen, ökologische, pragmatische und nutzenorientierte. Schliesslich braucht es auch einen rĂ€umlichen und sozialen Kontext, um autofrei zu leben. Einerseits besteht dieser aus Verkehrs- und anderen Infrastrukturen wie Nahversorgung oder RĂ€umen fĂŒr Gemeinschaftsakti- vitĂ€ten in der Siedlung. Andererseits beinhaltet dieser aber auch immaterielle Aspekte, insbesondere soziale Normen welche ermöglichen, Autofreiheit in Betracht zu ziehen. Zusammengefasst muss ein System von autofreier MobilitĂ€t aufgebaut werden, um die AutomobilitĂ€t zu ĂŒber- winden. Es besteht aus vielfĂ€ltigen individuellen Strategien, aber auch aus einem rĂ€umlichen und sozialen Kontext, der autofreies Leben ermöglicht

    Mobility in a Globalised World 2016

    Get PDF
    The term mobility has different meanings in the following science disciplines. In economics, mobility is the ability of an individual or a group to improve their economic status in relation to income and wealth within their lifetime or between generations. In information systems and computer science, mobility is used for the concept of mobile computing, in which a computer is transported by a person during normal use. Logistics creates by the design of logistics networks the infrastructure for the mobility of people and goods. Electric mobility is one of today’s solutions from engineering perspective to reduce the need of energy resources and environmental impact. Moreover, for urban planning, mobility is the crunch question about how to optimise the different needs for mobility and how to link different transportation systems. In this publication we collected the ideas of practitioners, researchers, and government officials regarding the different modes of mobility in a globalised world, focusing on both domestic and international issues

    Die KĂŒste, 89

    Get PDF

    Aktuelle Herausforderungen der privaten Krankenversicherung in Deutschland

    Get PDF
    [no abstract

    Human Practice. Digital Ecologies. Our Future. : 14. Internationale Tagung Wirtschaftsinformatik (WI 2019) : Tagungsband

    Get PDF
    Erschienen bei: universi - UniversitĂ€tsverlag Siegen. - ISBN: 978-3-96182-063-4Aus dem Inhalt: Track 1: Produktion & Cyber-Physische Systeme Requirements and a Meta Model for Exchanging Additive Manufacturing Capacities Service Systems, Smart Service Systems and Cyber- Physical Systems—What’s the difference? Towards a Unified Terminology Developing an Industrial IoT Platform – Trade-off between Horizontal and Vertical Approaches Machine Learning und Complex Event Processing: Effiziente Echtzeitauswertung am Beispiel Smart Factory Sensor retrofit for a coffee machine as condition monitoring and predictive maintenance use case Stakeholder-Analyse zum Einsatz IIoT-basierter Frischeinformationen in der Lebensmittelindustrie Towards a Framework for Predictive Maintenance Strategies in Mechanical Engineering - A Method-Oriented Literature Analysis Development of a matching platform for the requirement-oriented selection of cyber physical systems for SMEs Track 2: Logistic Analytics An Empirical Study of Customers’ Behavioral Intention to Use Ridepooling Services – An Extension of the Technology Acceptance Model Modeling Delay Propagation and Transmission in Railway Networks What is the impact of company specific adjustments on the acceptance and diffusion of logistic standards? Robust Route Planning in Intermodal Urban Traffic Track 3: Unternehmensmodellierung & Informationssystemgestaltung (Enterprise Modelling & Information Systems Design) Work System Modeling Method with Different Levels of Specificity and Rigor for Different Stakeholder Purposes Resolving Inconsistencies in Declarative Process Models based on Culpability Measurement Strategic Analysis in the Realm of Enterprise Modeling – On the Example of Blockchain-Based Initiatives for the Electricity Sector Zwischenbetriebliche Integration in der Möbelbranche: Konfigurationen und Einflussfaktoren Novices’ Quality Perceptions and the Acceptance of Process Modeling Grammars Entwicklung einer Definition fĂŒr Social Business Objects (SBO) zur Modellierung von Unternehmensinformationen Designing a Reference Model for Digital Product Configurators Terminology for Evolving Design Artifacts Business Role-Object Specification: A Language for Behavior-aware Structural Modeling of Business Objects Generating Smart Glasses-based Information Systems with BPMN4SGA: A BPMN Extension for Smart Glasses Applications Using Blockchain in Peer-to-Peer Carsharing to Build Trust in the Sharing Economy Testing in Big Data: An Architecture Pattern for a Development Environment for Innovative, Integrated and Robust Applications Track 4: Lern- und Wissensmanagement (e-Learning and Knowledge Management) eGovernment Competences revisited – A Literature Review on necessary Competences in a Digitalized Public Sector Say Hello to Your New Automated Tutor – A Structured Literature Review on Pedagogical Conversational Agents Teaching the Digital Transformation of Business Processes: Design of a Simulation Game for Information Systems Education Conceptualizing Immersion for Individual Learning in Virtual Reality Designing a Flipped Classroom Course – a Process Model The Influence of Risk-Taking on Knowledge Exchange and Combination Gamified Feedback durch Avatare im Mobile Learning Alexa, Can You Help Me Solve That Problem? - Understanding the Value of Smart Personal Assistants as Tutors for Complex Problem Tasks Track 5: Data Science & Business Analytics Matching with Bundle Preferences: Tradeoff between Fairness and Truthfulness Applied image recognition: guidelines for using deep learning models in practice Yield Prognosis for the Agrarian Management of Vineyards using Deep Learning for Object Counting Reading Between the Lines of Qualitative Data – How to Detect Hidden Structure Based on Codes Online Auctions with Dual-Threshold Algorithms: An Experimental Study and Practical Evaluation Design Features of Non-Financial Reward Programs for Online Reviews: Evaluation based on Google Maps Data Topic Embeddings – A New Approach to Classify Very Short Documents Based on Predefined Topics Leveraging Unstructured Image Data for Product Quality Improvement Decision Support for Real Estate Investors: Improving Real Estate Valuation with 3D City Models and Points of Interest Knowledge Discovery from CVs: A Topic Modeling Procedure Online Product Descriptions – Boost for your Sales? EntscheidungsunterstĂŒtzung durch historienbasierte Dienstreihenfolgeplanung mit Pattern A Semi-Automated Approach for Generating Online Review Templates Machine Learning goes Measure Management: Leveraging Anomaly Detection and Parts Search to Improve Product-Cost Optimization Bedeutung von Predictive Analytics fĂŒr den theoretischen Erkenntnisgewinn in der IS-Forschung Track 6: Digitale Transformation und Dienstleistungen Heuristic Theorizing in Software Development: Deriving Design Principles for Smart Glasses-based Systems Mirroring E-service for Brick and Mortar Retail: An Assessment and Survey Taxonomy of Digital Platforms: A Platform Architecture Perspective Value of Star Players in the Digital Age Local Shopping Platforms – Harnessing Locational Advantages for the Digital Transformation of Local Retail Outlets: A Content Analysis A Socio-Technical Approach to Manage Analytics-as-a-Service – Results of an Action Design Research Project Characterizing Approaches to Digital Transformation: Development of a Taxonomy of Digital Units Expectations vs. Reality – Benefits of Smart Services in the Field of Tension between Industry and Science Innovation Networks and Digital Innovation: How Organizations Use Innovation Networks in a Digitized Environment Characterising Social Reading Platforms— A Taxonomy-Based Approach to Structure the Field Less Complex than Expected – What Really Drives IT Consulting Value Modularity Canvas – A Framework for Visualizing Potentials of Service Modularity Towards a Conceptualization of Capabilities for Innovating Business Models in the Industrial Internet of Things A Taxonomy of Barriers to Digital Transformation Ambidexterity in Service Innovation Research: A Systematic Literature Review Design and success factors of an online solution for cross-pillar pension information Track 7: IT-Management und -Strategie A Frugal Support Structure for New Software Implementations in SMEs How to Structure a Company-wide Adoption of Big Data Analytics The Changing Roles of Innovation Actors and Organizational Antecedents in the Digital Age Bewertung des Kundennutzens von Chatbots fĂŒr den Einsatz im Servicedesk Understanding the Benefits of Agile Software Development in Regulated Environments Are Employees Following the Rules? On the Effectiveness of IT Consumerization Policies Agile and Attached: The Impact of Agile Practices on Agile Team Members’ Affective Organisational Commitment The Complexity Trap – Limits of IT Flexibility for Supporting Organizational Agility in Decentralized Organizations Platform Openness: A Systematic Literature Review and Avenues for Future Research Competence, Fashion and the Case of Blockchain The Digital Platform Otto.de: A Case Study of Growth, Complexity, and Generativity Track 8: eHealth & alternde Gesellschaft Security and Privacy of Personal Health Records in Cloud Computing Environments – An Experimental Exploration of the Impact of Storage Solutions and Data Breaches Patientenintegration durch Pfadsysteme Digitalisierung in der StressprĂ€vention – eine qualitative Interviewstudie zu Nutzenpotenzialen User Dynamics in Mental Health Forums – A Sentiment Analysis Perspective Intent and the Use of Wearables in the Workplace – A Model Development Understanding Patient Pathways in the Context of Integrated Health Care Services - Implications from a Scoping Review Understanding the Habitual Use of Wearable Activity Trackers On the Fit in Fitness Apps: Studying the Interaction of Motivational Affordances and Users’ Goal Orientations in Affecting the Benefits Gained Gamification in Health Behavior Change Support Systems - A Synthesis of Unintended Side Effects Investigating the Influence of Information Incongruity on Trust-Relations within Trilateral Healthcare Settings Track 9: Krisen- und KontinuitĂ€tsmanagement Potentiale von IKT beim Ausfall kritischer Infrastrukturen: Erwartungen, Informationsgewinnung und Mediennutzung der Zivilbevölkerung in Deutschland Fake News Perception in Germany: A Representative Study of People’s Attitudes and Approaches to Counteract Disinformation Analyzing the Potential of Graphical Building Information for Fire Emergency Responses: Findings from a Controlled Experiment Track 10: Human-Computer Interaction Towards a Taxonomy of Platforms for Conversational Agent Design Measuring Service Encounter Satisfaction with Customer Service Chatbots using Sentiment Analysis Self-Tracking and Gamification: Analyzing the Interplay of Motivations, Usage and Motivation Fulfillment Erfolgsfaktoren von Augmented-Reality-Applikationen: Analyse von Nutzerrezensionen mit dem Review-Mining-Verfahren Designing Dynamic Decision Support for Electronic Requirements Negotiations Who is Stressed by Using ICTs? A Qualitative Comparison Analysis with the Big Five Personality Traits to Understand Technostress Walking the Middle Path: How Medium Trade-Off Exposure Leads to Higher Consumer Satisfaction in Recommender Agents Theory-Based Affordances of Utilitarian, Hedonic and Dual-Purposed Technologies: A Literature Review Eliciting Customer Preferences for Shopping Companion Apps: A Service Quality Approach The Role of Early User Participation in Discovering Software – A Case Study from the Context of Smart Glasses The Fluidity of the Self-Concept as a Framework to Explain the Motivation to Play Video Games Heart over Heels? An Empirical Analysis of the Relationship between Emotions and Review Helpfulness for Experience and Credence Goods Track 11: Information Security and Information Privacy Unfolding Concerns about Augmented Reality Technologies: A Qualitative Analysis of User Perceptions To (Psychologically) Own Data is to Protect Data: How Psychological Ownership Determines Protective Behavior in a Work and Private Context Understanding Data Protection Regulations from a Data Management Perspective: A Capability-Based Approach to EU-GDPR On the Difficulties of Incentivizing Online Privacy through Transparency: A Qualitative Survey of the German Health Insurance Market What is Your Selfie Worth? A Field Study on Individuals’ Valuation of Personal Data Justification of Mass Surveillance: A Quantitative Study An Exploratory Study of Risk Perception for Data Disclosure to a Network of Firms Track 12: Umweltinformatik und nachhaltiges Wirtschaften KommunikationsfĂ€den im Nadelöhr – Fachliche Prozessmodellierung der Nachhaltigkeitskommunikation am Kapitalmarkt Potentiale und Herausforderungen der Materialflusskostenrechnung Computing Incentives for User-Based Relocation in Carsharing Sustainability’s Coming Home: Preliminary Design Principles for the Sustainable Smart District Substitution of hazardous chemical substances using Deep Learning and t-SNE A Hierarchy of DSMLs in Support of Product Life-Cycle Assessment A Survey of Smart Energy Services for Private Households Door-to-Door Mobility Integrators as Keystone Organizations of Smart Ecosystems: Resources and Value Co-Creation – A Literature Review Ein EntscheidungsunterstĂŒtzungssystem zur ökonomischen Bewertung von Mieterstrom auf Basis der Clusteranalyse Discovering Blockchain for Sustainable Product-Service Systems to enhance the Circular Economy Digitale RĂŒckverfolgbarkeit von Lebensmitteln: Eine verbraucherinformatische Studie Umweltbewusstsein durch audiovisuelles Content Marketing? Eine experimentelle Untersuchung zur Konsumentenbewertung nachhaltiger Smartphones Towards Predictive Energy Management in Information Systems: A Research Proposal A Web Browser-Based Application for Processing and Analyzing Material Flow Models using the MFCA Methodology Track 13: Digital Work - Social, mobile, smart On Conversational Agents in Information Systems Research: Analyzing the Past to Guide Future Work The Potential of Augmented Reality for Improving Occupational First Aid Prevent a Vicious Circle! The Role of Organizational IT-Capability in Attracting IT-affine Applicants Good, Bad, or Both? Conceptualization and Measurement of Ambivalent User Attitudes Towards AI A Case Study on Cross-Hierarchical Communication in Digital Work Environments ‘Show Me Your People Skills’ - Employing CEO Branding for Corporate Reputation Management in Social Media A Multiorganisational Study of the Drivers and Barriers of Enterprise Collaboration Systems-Enabled Change The More the Merrier? The Effect of Size of Core Team Subgroups on Success of Open Source Projects The Impact of Anthropomorphic and Functional Chatbot Design Features in Enterprise Collaboration Systems on User Acceptance Digital Feedback for Digital Work? Affordances and Constraints of a Feedback App at InsurCorp The Effect of Marker-less Augmented Reality on Task and Learning Performance Antecedents for Cyberloafing – A Literature Review Internal Crowd Work as a Source of Empowerment - An Empirical Analysis of the Perception of Employees in a Crowdtesting Project Track 14: GeschĂ€ftsmodelle und digitales Unternehmertum Dividing the ICO Jungle: Extracting and Evaluating Design Archetypes Capturing Value from Data: Exploring Factors Influencing Revenue Model Design for Data-Driven Services Understanding the Role of Data for Innovating Business Models: A System Dynamics Perspective Business Model Innovation and Stakeholder: Exploring Mechanisms and Outcomes of Value Creation and Destruction Business Models for Internet of Things Platforms: Empirical Development of a Taxonomy and Archetypes Revitalizing established Industrial Companies: State of the Art and Success Principles of Digital Corporate Incubators When 1+1 is Greater than 2: Concurrence of Additional Digital and Established Business Models within Companies Special Track 1: Student Track Investigating Personalized Price Discrimination of Textile-, Electronics- and General Stores in German Online Retail From Facets to a Universal Definition – An Analysis of IoT Usage in Retail Is the Technostress Creators Inventory Still an Up-To-Date Measurement Instrument? Results of a Large-Scale Interview Study Application of Media Synchronicity Theory to Creative Tasks in Virtual Teams Using the Example of Design Thinking TrustyTweet: An Indicator-based Browser-Plugin to Assist Users in Dealing with Fake News on Twitter Application of Process Mining Techniques to Support Maintenance-Related Objectives How Voice Can Change Customer Satisfaction: A Comparative Analysis between E-Commerce and Voice Commerce Business Process Compliance and Blockchain: How Does the Ethereum Blockchain Address Challenges of Business Process Compliance? Improving Business Model Configuration through a Question-based Approach The Influence of Situational Factors and Gamification on Intrinsic Motivation and Learning Evaluation von ITSM-Tools fĂŒr Integration und Management von Cloud-Diensten am Beispiel von ServiceNow How Software Promotes the Integration of Sustainability in Business Process Management Criteria Catalog for Industrial IoT Platforms from the Perspective of the Machine Tool Industry Special Track 3: Demos & Prototyping Privacy-friendly User Location Tracking with Smart Devices: The BeaT Prototype Application-oriented robotics in nursing homes Augmented Reality for Set-up Processe Mixed Reality for supporting Remote-Meetings Gamification zur Motivationssteigerung von Werkern bei der Betriebsdatenerfassung Automatically Extracting and Analyzing Customer Needs from Twitter: A “Needmining” Prototype GaNEsHA: Opportunities for Sustainable Transportation in Smart Cities TUCANA: A platform for using local processing power of edge devices for building data-driven services Demonstrator zur Beschreibung und Visualisierung einer kritischen Infrastruktur Entwicklung einer alltagsnahen persuasiven App zur Bewegungsmotivation fĂŒr Ă€ltere Nutzerinnen und Nutzer A browser-based modeling tool for studying the learning of conceptual modeling based on a multi-modal data collection approach Exergames & Dementia: An interactive System for People with Dementia and their Care-Network Workshops Workshop Ethics and Morality in Business Informatics (Workshop Ethik und Moral in der Wirtschaftsinformatik – EMoWI’19) Model-Based Compliance in Information Systems - Foundations, Case Description and Data Set of the MobIS-Challenge for Students and Doctoral Candidates Report of the Workshop on Concepts and Methods of Identifying Digital Potentials in Information Management Control of Systemic Risks in Global Networks - A Grand Challenge to Information Systems Research Die Mitarbeiter von morgen - Kompetenzen kĂŒnftiger Mitarbeiter im Bereich Business Analytics Digitaler Konsum: Herausforderungen und Chancen der Verbraucherinformati

    Die Umkehrhypothek als privates Alterssicherungsinstrument in Deutschland

    Get PDF
    Die Alterssicherung in Deutschland kann aufgrund des demographischen Wandels nicht mehr vollstĂ€ndig staatlicherseits gewĂ€hrleistet werden. Zunehmend werden deshalb private Alterssicherungsinstrumente als Lösung diskutiert. In Deutschland verfĂŒgt jede zweite Person ĂŒber 65 Jahren ĂŒber ein beachtliches illiquides Vermögen in Form einer selbst genutzten Immobilie. Die Umkehrhypothek ist ein privates Alterssicherungsinstrument, das die Freisetzung des gebundenen Vermögens der Immobilie ermöglicht und das Einkommen im Alter folglich erhöht. Diese Bachelorarbeit setzt sich mit der Frage auseinander, inwiefern die Umkehrhypothek in Deutschland einen Markt finden kann und welche Bedeutung die Umkehrhypothek als ergĂ€nzendes privates Alterssicherungsinstrument in Deutschland fĂŒr die Zukunft hat

    EuropĂ€isierung von unten? Beobachtungen zur EU-Integration SĂŒdosteuropas

    Get PDF

    SECURITY AND PRIVACY ASPECTS OF MOBILE PLATFORMS AND APPLICATIONS

    Get PDF
    Mobile smart devices (such as smartphones and tablets) emerged to dominant computing platforms for end-users. The capabilities of these convenient mini-computers seem nearly boundless: They feature compelling computing power and storage resources, new interfaces such as Near Field Communication (NFC) and Bluetooth Low Energy (BLE), connectivity to cloud services, as well as a vast number and variety of apps. By installing these apps, users can turn a mobile device into a music player, a gaming console, a navigation system, a business assistant, and more. In addition, the current trend of increased screen sizes make these devices reasonable replacements for traditional (mobile) computing platforms such as laptops. On the other hand, mobile platforms process and store the extensive amount of sensitive information about their users, ranging from the user’s location data to credentials for online banking and enterprise Virtual Private Networks (VPNs). This raises many security and privacy concerns and makes mobile platforms attractive targets for attackers. The rapid increase in number, variety and sophistication of attacks demonstrate that the protection mechanisms offered by mobile systems today are insufficient and improvements are necessary in order to make mobile devices capable of withstanding modern security and privacy threats. This dissertation focuses on various aspects of security and privacy of mobile platforms. In particular, it consists of three parts: (i) advanced attacks on mobile platforms and countermeasures; (ii) online authentication security for mobile systems, and (iii) secure mobile applications and services. Specifically, the first part of the dissertation concentrates on advanced attacks on mobile platforms, such as code re-use attacks that hijack execution flow of benign apps without injecting malicious code, and application-level privilege escalation attacks that allow malicious or compromised apps to gain more privileges than were initially granted. In this context, we develop new advanced code re-use attack techniques that can bypass deployed protection mechanisms (e.g., Address Space Layout Randomization (ASLR)) and cannot be detected by any of the existing security tools (e.g., return address checkers). Further, we investigate the problem of application-level privilege escalation attacks on mobile platforms like Android, study and classify them, develop proof of concept exploits and propose countermeasures against these attacks. Our countermeasures can mitigate all types of application-level privilege escalation attacks, in contrast to alternative solutions proposed in literature. In the second part of the dissertation we investigate online authentication schemes frequently utilized by mobile users, such as the most common web authentication based upon the user’s passwords and the recently widespread mobile 2-factor authentication (2FA) which extends the password-based approach with a secondary authenticator sent to a user’s mobile device or generated on it (e.g, a One-time Password (OTP) or Transaction Authentication Number (TAN)). In this context we demonstrate various weaknesses of mobile 2FA schemes deployed for login verification by global Internet service providers (such as Google, Dropbox, Twitter, and Facebook) and by a popular Google Authenticator app. These weaknesses allow an attacker to impersonate legitimate users even if their mobile device with the secondary authenticator is not compromised. We then go one step further and develop a general attack method for bypassing mobile 2FA schemes. Our method relies on a cross-platform infection (mobile-to-PC or PC-to-mobile) as a first step in order to compromise the Personal Computer (PC) and a mobile device of the same user. We develop proof-of-concept prototypes for a cross-platform infection and show how an attacker can bypass various instantiations of mobile 2FA schemes once both devices, PC and the mobile platform, are infected. We then deliver proof-of-concept attack implementations that bypass online banking solutions based on SMS-based TANs and visual cryptograms, as well as login verification schemes deployed by various Internet service providers. Finally, we propose a wallet-based secure solution for password-based authentication which requires no secondary authenticator, and yet provides better security guaranties than, e.g., mobile 2FA schemes. The third part of the dissertation concerns design and development of security sensitive mobile applications and services. In particular, our first application allows mobile users to replace usual keys (for doors, cars, garages, etc.) with their mobile devices. It uses electronic access tokens which are generated by the central key server and then downloaded into mobile devices for user authentication. Our solution protects access tokens in transit (e.g., while they are downloaded on the mobile device) and when they are stored and processed on the mobile platform. The unique feature of our solution is offline delegation: Users can delegate (a portion of) their access rights to other users without accessing the key server. Further, our solution is efficient even when used with constraint communication interfaces like NFC. The second application we developed is devoted to resource sharing among mobile users in ad-hoc mobile networks. It enables users to, e.g., exchange files and text messages, or share their tethering connection. Our solution addresses security threats specific to resource sharing and features the required security mechanisms (e.g., access control of resources, pseudonymity for users, and accountability for resource use). One of the key features of our solution is a privacy-preserving access control of resources based on FoF Finder (FoFF) service, which provides a user-friendly means to configure access control based upon information from social networks (e.g., friendship information) while preserving user privacy (e.g., not revealing their social network identifiers). The results presented in this dissertation were included in several peer-reviewed publications and extended technical reports. Some of these publications had significant impact on follow up research. For example, our publications on new forms of code re-use attacks motivated researchers to develop more advanced forms of ASLR and to re-consider the idea of using Control-Flow Integrity (CFI). Further, our work on application-level privilege escalation attacks was followed by many other publications addressing this problem. Moreover, our access control solution using mobile devices as access tokens demonstrated significant practical impact: in 2013 it was chosen as a highlight of CeBIT – the world’s largest international computer expo, and was then deployed by a large enterprise to be used by tens of thousands of company employees and millions of customers
    • 

    corecore