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Marketingrecht
(2018)
SWOT-Analyse
(2018)
Portfolio-Analyse
(2018)
Business Reengineering
(2018)
Einleitung
(2018)
Benchmarking
(2018)
Online-Marktforschung
(2018)
Social CRM
(2018)
No-Line Ansatz
(2018)
Einführender Überblick
(2018)
Social Media Controlling
(2018)
Covert- and side-channels as well as techniques to establish them in cloud computing are in focus of research for quite some time. However, not many concrete mitigation methods have been developed and even less have been adapted and concretely implemented by cloud providers. Thus, we recently conceptually proposed C 3 -Sched a CPU scheduling based approach to mitigate L2 cache covert-channels. Instead of flushing the cache on every context switch, we schedule trusted virtual machines to create noise which prevents potential covert-channels. Additionally, our approach aims on preserving performance by utilizing existing instead of artificial workload while reducing covert-channel related cache flushes to cases where not enough noise has been achieved. In this work we evaluate cache covert-channel mitigation and performance impact of our integration of C 3 -Sched in the XEN credit scheduler. Moreover, we compare it to naive solutions and more competitive approaches.
Szenario-Technik
(2018)
Delphi-Technik
(2018)
Kundenbindung
(2018)
Kundenbindungscontrolling
(2018)
The authors claim that location information of stationary ICT components can never be unclassified. They describe how swarm-mapping crowd sourcing is used by Apple and Google to worldwide harvest geo-location information on wireless access points and mobile telecommunication systems' base stations to build up gigantic databases with very exclusive access rights. After having highlighted the known technical facts, in the speculative part of this article, the authors argue how this may impact cyber deterrence strategies of states and alliances understanding the cyberspace as another domain of geostrategic relevance. The states and alliances spectrum of activities due to the potential existence of such databases may range from geopolitical negotiations by institutions understanding international affairs as their core business, mitigation approaches at a technical level, over means of cyber deterrence-by-retaliation.
In this article, we present a taxonomy in Robot-Assisted Training; a growing body of research in Human–Robot Interaction which focuses on how robotic agents and devices can be used to enhance user’s performance during a cognitive or physical training task. Robot-Assisted Training systems have been successfully deployed to enhance the effects of a training session in various contexts, i.e., rehabilitation systems, educational environments, vocational settings, etc. The proposed taxonomy suggests a set of categories and parameters that can be used to characterize such systems, considering the current research trends and needs for the design, development and evaluation of Robot-Assisted Training systems. To this end, we review recent works and applications in Robot-Assisted Training systems, as well as related taxonomies in Human–Robot Interaction. The goal is to identify and discuss open challenges, highlighting the different aspects of a Robot-Assisted Training system, considering both robot perception and behavior control.
In a Semi-autonomic cloud auditing architecture we weaved in privacy enhancing mechanisms [15] by applying the public key version of the Somewhat homomorphic encryption (SHE) scheme from [4]. It turns out that the performance of the SHE can be significantly improved by carefully deriving relevant crypto parameters from the concrete cloud auditing use cases for which the scheme serves as a privacy enhancing approach. We provide a generic algorithm for finding good SHE parameters with respect to a given use case scenario by analyzing and taking into consideration security, correctness and performance of the scheme. Also, to show the relevance of our proposed algorithms we apply it to two predominant cloud auditing use cases.
Autonome Systeme im Consumerbereich - Was bedeutet die Autonomie technischer Systeme für den Kunden
(2018)
Entscheidungstechniken
(2018)
Brand identification has the potential of shaping individuals' attitudes, performance and commitment within learning and work contexts. We explore these effects, by incorporating elements of branded identification within gamified environments. We report a study with 44 employees, in which task performance and emotional outcomes are assessed in a real-world assembly scenario - namely, while performing a soldering task. Our results indicate that brand identification has a direct impact on individuals' attitude towards the task at hand: while instigating positive emotions, aversion and reactance also arise.
In this paper we report on the commercial background as well as resulting high-level architecture and design of a cloud-based system for cryptographic software protection and licensing. This is based on the experiences and insights gained in the context of a real-world commercial R&D project at Wibu-Systems AG, a company that specialises in software encryption and licensing solutions.
Kernkompetenz-Management
(2018)
Frühwarnsysteme
(2018)
Bank and trust – two words but one meaning in customers’ minds. When interacting with financial service providers, customers are consistently looking for “trust signals” that comfort their decisions and “distrust signals” which create doubt. Therefore, service providers need a deep understanding of the customers’ requirements and wishes. To identify trust and distrust signals, we combine established user experience research methods with a new testing procedure to gain helpful recommendations for optimizing the online appearance of banks. The contribution is divided into three parts: Firstly, we investigate current approaches in the financial service industry. Secondly, we provide a corpus describing the relationship between the customers’ perception of a bank’s website and trust. Thirdly, an empirical study based on qualitative user experience testing with banking website customers shows the value gained by optimizing the banks’ virtual interface by enhancing “trust signals” and avoiding “distrust signals”.
Mit Gendering Marteloskope stellen wir Entwicklungsprozess dar: Entstanden ist videografisches Material in Marteloskopen, die im Wald Bäume, Tablets und Menschen in Dialog zueinander setzen. Die Videografie und die Erfahrungen vor Ort werden mit Ansätzen aus Gender in Science and Technlogy Studies reflektiert sowie mit digital unterstützter kollaborativer Didaktik über interaktive Webdokumentationen zu Open Science Modulen zusammengeführt.
The economic dispatch (ED) problem is a large-scale optimization problem in electricity power grids. Its goal is to find a power output combination of all generator nodes that meet the demand of the customers at minimum operating cost. In recent years, distributed protocols have been proposed to replace the traditional centralized ED calculation for modern smart grid infrastructures with the most realistic being the one proposed by Binetti et al. (2014). However, we show that this protocol leaks private information of the generator nodes. We then propose a privacy-preserving distributed protocol that solves the ED problem. We analyze the security of our protocol and give experimental results from a prototype implementation to show the feasibility of the solution.
Wer sich mit der Fragestellung von Autonomie – verstanden im ursprünglichen Sinn von Selbständigkeit und Unabhängigkeit – im Zusammenhang mit Kreation und Gestaltung beschäftigt, merkt schnell, dass bei aller Modernität der heutigen Digitaltechniken ein uraltes Thema auftaucht: die grundsätzliche Abhängigkeit des schöpferischen Aktes von Technik und Material, von Handwerk und Produktionsbedingungen.
Wer sich mit Digitalisierungsbestrebungen an Schulen befasst, stellt fest, dass die Tragweite der intendierten Transformation von Bildungseinrichtungen zu automatisierten Lernfabriken durch Digitaltechnik nur von Wenigen realisiert wird. Viele Beteiligte (wollen) glauben, es ginge nur um eine bessere technische Ausstattung der Lehreinrichtungen zur Unterstützung der Lehrkräfte – und übersehen, dass mit Kybernetik und Behaviorismus zwei den Menschen determinierende Theorien eine Renaissance erleben. Vertreter dieser Disziplinen glauben daran, dass sowohl der einzelne Mensch wie ganze Gesellschaften oder Sozialgemeinschaften wie ein Maschinenpark programmiert und gesteuert werden könne. Dabei werden Lernprozesse zu Akten der systematischen Selbstentmündigung umdefiniert: die Zurichtung der Lernenden auf abfragbare Kompetenzen mit Hilfe von Algorithmen und Software.
Bildung statt Profilbildung
(2018)
Der Spion im Klassenzimmer
(2018)
Deafblindness is a condition that limits communication capabilities primarily to the haptic channel. In the EU-funded project SUITCEYES we design a system which allows haptic and thermal communication via soft interfaces and textiles. Based on user needs and informed by disability studies, we combine elements from smart textiles, sensors, semantic technologies, image processing, face and object recognition, machine learning, affective computing, and gamification. In this work, we present the underlying concepts and the overall design vision of the resulting assistive smart wearable.
We present the design of a system combining augmented reality (AR) and gamification to support elderly persons’ rehabilitation activities. The system is attached to the waist; it collects detailed movement data and at the same time augments the user’s path by projections. The projected AR-elements can provide location-based information or incite movement games. The collected data can be observed by therapists. Based on this data, the challenge level can be more frequently adapted, keeping up the patient’s motivation. The exercises can involve cognitive elements (for mild cognitive impairments), physiological elements (rehabilitation), or both. The overall vision is an individualized and gamified therapy. Thus, the system also offers application scenarios beyond rehabilitation in sports. In accordance with the methodology of design thinking, we present a first specification and a design vision based on inputs from business experts, gerontologists, physiologists, psychologists, game designers, cognitive scientists and computer scientists.