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Institut
- Institut für Wirtschafts- und Verwaltungsinformatik (53) (entfernen)
Mobile payment has been a payment option in the market for a long time now and was predicted to become a widely used payment method. However, over the years, the market penetration rate of mPayments has been relatively low, despite it having all characteristics required of a convenient payment method. The primaryrnreason for this has been cited as a lack of customer acceptance mainly caused due to the lack of perceived security by the end-user. Although biometric authentication is not a new technology, it is experiencing a revival in the light of the present day terror threats and increased security requirements in various industries. The application of biometric authentication in mPayments is analysed here and a suitable biometric authentication method for use with mPayments is recommended. The issue of enrolment, human and technical factors to be considered are discussed and the STOF business model is applied to a BiMoP (biometric mPayment) application.
Die Verwendung von Multi-Agenten-Systemen in Verbindung mit Agenten-orientiertem Software Engineering stellt mittlerweile einen ausgereiften Ansatz zur Modellierung komplexer Systeme dar. Allerdings finden Multi-Agenten-Systeme im weiteren Feld der Softwareentwicklung bisher nur schwachen Anklang. Im Kontrast dazu erregt die Anerkennung des interdisziplinären Feldes der sozialwissenschaftlichen Simulation über akademische Grenzen hinaus zunehmend die Aufmerksamkeit des 'Mainstream' der Agentenforscher. Dies nimmt sich diese Arbeit zum Anlass, die Verwendung von Multi-Agenten-Systemen im weiteren Feld der Software-Entwicklung voranzutreiben und gleichzeitig die unterschiedlichen Schwerpunkte von sozialwissenschaftlicher Simulation und Multi-Agenten-Systemen zu analysieren. Im Zuge dessen bietet sich die Reimplementierung des effizienzorientierten Micro-Agenten-Konzepts, welches den Kern der Otago Agent Platform (OPAL) bildet, an. Ergebnis ist eine eigenständige Micro-Agenten-Plattform, µ², die zahlreiche konzeptionelle wie technische Innovationen bietet. Dazu gehören die Integration der funktional orientierten Programmiersprache Clojure sowie die Implementation asynchroner Nachrichtenübermittlung. Als weiterer Aspekt wird die zunehmend populäre mobile Anwendungsplattform Android berücksichtigt. Über die reine Portierung der Agentenplattform hinaus weist Android Merkmale von Multi-Agenten-Systemen auf. Die Verbindung der Kommunikationsmechanismen von Android und Micro-Agenten-Plattform erweitert das Funktionsspektrum auf beiden Seiten: Micro-Agenten können unmittelbar auf beliebige Android-Funktionalität zugreifen, während Android die Micro-Agenten-Plattform als netzwerkweite Kommunikationsmiddleware verwenden kann. Potentiale dieser symbiotischen Beziehung erstrecken sich darüber hinaus in die Bereiche der Entwicklung 'intelligenter' mobiler Anwendungen sowie Robotik. Weiteres Ziel der Arbeit ist die Bereitstellung von Erweiterungen der Plattform, die eine Verwendung im Kontext sozialwissenschaftlicher Simulation ermöglichen. Das aus Softwareentwicklungssicht schwache, jedoch aus Simulationssicht relativ mächtige Micro-Agenten-Konzept zeigt seine Qualitäten im Kontext kommunikationsintensiver Szenarien. Um dies zu realisieren, wird ein Simulationszenario basierend auf Hofstede's Cultural Dimensions konstruiert, welches die Gruppenbildung interkultureller Individuen simuliert. Neben dem Nachweis der Anwendbarkeit der Plattform für Simulationsszenarien zeigen sich interessante Muster in und außerhalb der gebildeten Gruppen. Insgesamt zeigt diese explorative Arbeit ein breites Potential zur Verwendung von Agenten- respektive Micro-Agenten-Prinzipien auf. Dies reicht von Agentenorientierter Modellierung bis zum Potential, die Konvergenz mobiler und stationärer Anwendungen voranzutreiben. Darüber hinaus bieten sich weitere Verbesserungspotentiale am Micro-Agenten-Konzept sowie der Plattform selbst, ebenso wie eine intensivere Untersuchung der direkten Interaktion von Micro-Agenten mit mobilen Umgebungen an. Unabhängig davon bietet das entwickelte Simulationsmodell einen Ansatz für die Verwendung kultureller Aspekte im Kontext intelligenter Agenten.
Im Rahmen dieser Bachelorarbeit wurde ein Back-Office für die elektronische Version des Europäischen Schadensberichtes erstellt. Es wurde bereits in anderen Arbeiten ein mobiler Client, welcher auf einem Windows Mobile Handy läuft, sowie ein Polizei Client erstellt. Diese greifen auf das Back-Office zu, um Daten, wie z.B. die Autodaten (Automarke, der Typ, das Baujahr und Bilder eines 3D-Modells des Autos) zu einem bestimmten Kennzeichen oder die Personendaten des jeweiligen Autobesitzers zu erhalten. Der mobile Client sendet zudem die Unfallakte an das Back-Office, damit die Daten über einen Unfall in diesem abgespeichert und weiter bearbeitet werden können. Ziel der Arbeit war es ein erweiterbares, modulares System zu entwickeln, welches später um weitere Module ergänzt werden kann, um neue Funktionen bereitstellen zu können. Diese Module können jeweils beliebige Daten in einer Datenbank abspeichern und diese von der Datenbank auch wieder abfragen, sowie verändern, ohne dass das relationale Schema der Datenbank verändert werden muss.
Cloud Computing is a topic that has gained momentum in the last years. Current studies show that an increasing number of companies is evaluating the promised advantages and considering making use of cloud services. In this paper we investigate the phenomenon of cloud computing and its importance for the operation of ERP systems. We argue that the phenomenon of cloud computing could lead to a decisive change in the way business software is deployed in companies. Our reference framework contains three levels (IaaS, PaaS, SaaS) and clarifies the meaning of public, private and hybrid clouds. The three levels of cloud computing and their impact on ERP systems operation are discussed. From the literature we identify areas for future research and propose a research agenda.
The paper is devoted to solving the problem of assessing the quality of the medical electronic service. A variety of dimensions and factors of quality, methods and models applied in different scopes of activity for assessing quality of service is researched. The basic aspects, requirements and peculiarities of implementing medical electronic services are investigated. The results of the analysis and the set of information models describing the processes of assessing quality of the electronic service "Booking an appointment with a physician" and developed for this paper allowed us to describe the methodology and to state the problem of the assessment of quality of this service.
This paper describes results of the simulation of social objects, the dependence of schoolchildren's professional abilities on their personal characteristics. The simulation tool is the artificial neural network (ANN) technology. Results of a comparison of the time expense for training the ANN and for calculating the weight coefficients with serial and parallel algorithms, respectively, are presented.
The estimation of various social objects is necessary in different fields of social life, science, education, etc. This estimation is usually used for forecasting, for evaluating of different properties and for other goals in complex man-machine systems. At present this estimation is possible by means of computer and mathematical simulation methods which is connected with significant difficulties, such as: - time-distributed process of receiving information about the object; - determination of a corresponding mathematical device and structure identification of the mathematical model; - approximation of the mathematical model to real data, generalization and parametric identification of the mathematical model; - identification of the structure of the links of the real social object. The solution of these problems is impossible without a special intellectual information system which combines different processes and allows predicting the behaviour of such an object. However, most existing information systems lead to the solution of only one special problem. From this point of view the development of a more general technology of designing such systems is very important. The technology of intellectual information system development for estimation and forecasting the professional ability of respondents in the sphere of education can be a concrete example of such a technology. Job orientation is necessary and topical in present economic conditions. It helps tornsolve the problem of expediency of investments to a certain sphere of education. Scientifically validated combined diagnostic methods of job orientation are necessary to carry out professional selection in higher education establishments. The requirements of a modern society are growing, with the earlier developed techniques being unable to correspond to them sufficiently. All these techniques lack an opportunity to account all necessary professional and personal characteristics. Therefore, it is necessary to use a system of various tests. Thus, the development of new methods of job orientation for entrants is necessary. The information model of the process of job orientation is necessary for this purpose. Therefore, it would be desirable to have an information system capable of giving recommendations concerning the choice of a trade on the basis of complex personal characteristics of entrants.
An estimation of the number of multiplication and addition operations for training artififfcial neural networks by means of consecutive and parallel algorithms on a computer cluster is carried out. The evaluation of the efficiency of these algorithms is developed. The multilayer perceptron, the Volterra network and the cascade-correlation network are used as structures of artififfcial neural networks. Different methods of non-linear programming such as gradient and non-gradient methods are used for the calculation of the weight coefficients.