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Institute
- Fachbereich 4 (42) (remove)
Die wesentliche Zielsetzung der Bachelor-Arbeit war es, entlang der Anforderungen an DMS/WMS aus dem DOMEA-Konzept und aus dem Kommunalen Gebietsrechenzentrum Koblenz (KGRZ) verschiedene Systeme zu evaluieren. Weiteres Ziel war es, ein System, das die Anforderungen am besten erfüllt, zu identifizieren. Entlang der Evaluation wurde exemplarisch der Workflow des KGRZ untersucht, bewertet und ggf. angepasst. Des Weiteren wurde auf die Frage eingegangen, ob ein einheitliches System im Rahmen des Föderalismus nicht nur in Koblenz sondern auch Rheinland-Pfalz weit eingesetzt werden kann, oder ob ämterspezifische Lösungen vorteilhafter sind.
This Thesis deals with the state of Customer Relationship Management (CRM) in companies and the opportunities that are offered by these. The motivation for this thesis results from the request to classify the value of CRM. Furthermore, we want to do a research on how far a CRM-System is able to support and improve company processes. In addition, we want to get an overview of possible conditions that are linked with such a system. For the use case the motivation follows from the opportunity to optimize inefficient processes. As a result, this thesis tries to present perspectives which can improve company processes; moreover conduce to a bigger value creation.
This thesis covers in detail with customer-related processes of the company Alere and its quality in terms of the prospective implementation of a CRM-System. As there are only a few standard requirements for the processes, it is not possible to make a statement about process quality. These circumstances need a tool that is able to fulfil specified requirements. This gap shall be closed by a CRM-System. If we want to close this gap efficiently we first have to research the actual customer-related processes with the aim to specify the new system requirements.
The thesis shall deliver an insight into the topic with the goal to show the advantages of a CRM-System. Additionally, the identification of weak points, based on the use case and the motivation follows. With these data we will optimize the customer-related processes based on the CRM-System functions. Several departments of the company have contact with the customers. Because of this fact the focus lies on documentation, central data storage and loss-free communication between customers and staff and among the staff. The thesis shall deliver different results. First of all, a catalogue of requirements for the customer-related processes which bases on the basics.
Furthermore, the modelling of the customer-related processes. In addition a catalogue of the weak points of the customer related processes and after that a specification of requirements for the CRM-System to optimize the customer-related processes.
Finally the thesis shall generate the modelling of the optimized customer-related processes. The last result the thesis shall deliver is the discussion and conclusion.
A trending topic in Semantic Web research deals with the processing of queries over Linked Open Data (LOD). As has been shown in literature, the loose nature of the "web of data" and data sources within can be accounted for by employing federated query processing strategies. This approach, however, is all the more dependent on both up-to-date statistical summaries (data statistics) of the sources in use and accurate and precise estimation of cardinalities and selectivities. In general, federated data sources are to be seen as black-boxes w.r.t. data statistics, as no interchange of such information can be expected. Because of this, it is possible for individual data statistics to become obsolete, if the corresponding source is subjected to data changes cumulating over time. In this thesis an adaptive system is being proposed, that complements a given RDF-based query federator. Through observation and analysis of the error of the cardinality estimation of incoming queries, it tries to infer the obsolescence of individual data statistics, triggering updates of data statistics found to be obsolete. An evaluation of the system shows, that the approach to this solution is plausible. Yet, in practice no satisfying results could be acquired, that would prove a true practicality. Still, parts of the system proposed may be re-used for related tasks that could be more promising.
Computers assist humans in many every-day situations. Their advancing miniaturisation broadens their fields of use and leads to an even higher significance and spread throughout society. Already, these small and powerful machines are wide-spread in every-day objects and the spread increases still as the mobility-aspect grows in importance. From laptops, smartphones and tables to systems worn on the body (wearable computing) or even inside the body as cyber-implants, these systems help humans actively and context-sensitively in the accomplishment of their every-day business.
A part of the wearable-computing-domain is taken up by the development of Head-mounted displays (HMD). These helmets or goggles feature one or more displays enabling their users to see computer-rendered images or images of their environment enriched with computer-generated information. At the moment, most of this HMD feature LC-Displays, but newer systems start appearing that allow the projection of the image onto the user's retina. Newest break-throughs in the field of study already produced contact lenses with an integrated display. The data shown by a HMD is compiled using a multitude of sensors, like a Head-Tracker or a GPS. Increasing computational performance and miniaturisation lead to a wide spread of HMD in a lot of fields.rnThe multiple scenarios in which a HMD can be used to help improve human-perception and -interaction led the "Institut für Integrierte Naturwissenschaften" of the University of Koblenz-Landau to come up with a HMD on the basis of Apple's iOS-devices featuring Retina Displays. The high pixel density of these displays combined with condensor lenses into a HMD offer a highly immersive environment for stereoscopic imagery, while other systems only display a relatively small image projected a few feet away of the user. Furthermore, the iPhone/ iPod Touch and iPad exhibit a lot of potential given by their variety of offered sensors and computational power. While producing a similarly feature-rich HMD is very costy, using simple iPod Touches 4th Gen as the basis of a HMD results in a very inexpensive solution with a high potential. The increasing popularity and spread of Apple devices would reduce the costs even more, as users of the HMD could simply integrate their device into the system. A software designed with the specific intent to support a large variety of Apple iOS-devices that could easily be extended to support newer devices, would allow for a universal use of such a HMD-solution as the new device could simply replace an old device.rnrnThe focus of this thesis is the conception and development of an application designed for Apple's iOS 5 operating system that will be used in a HMD evolving around the use of Apple iOS-devices featuring Retina Displays. The Rollercoaster2000-project depicting a ride in a virtual rollercoaster will be used as the application's core. A server will syncronize the display of clients conntected to it which are combined to form a HMD. Furthermore the gyroscope of the iOS-devices combined into a HMD will be used to track the wearer's head-movements. Another feature will be the use of the devices cameras as a mean of orientation while wearing the HMD.
As a first step in the realization of a software meeting the set specifications is the introduction of the Objective-C programming languages used to develop iOS-Applications. In conjunction with the compiler and runtime environment, Objective-C makes up the base of the second step, the introduction of the iOS-SDK. Aimed with this iOS-app-development-knowledge, the last part of the thesis consists of the ascertainment of requirements and development of a software complying to the goals of a software written specifically for the used in a HMD.
Gartner predicts that 33 per cent of total accesses to Business Intelligence (BI) functionalities will be done until 2013 using mobile devices. While mobile devices have already spread to a high extent in private life they have recently become more and more part of the professional life as well and businesses are seeking to develop smart scenarios on how to integrate the new technologies in their processes. The development of mobile software applications is also booming in the field of BI. The research topic of Mobile Business Intelligence (mBI) is focussing on how to expand traditional BI concepts to the new mobility dimension thus enabling to apply BI functionalities on mobile devices, such as smartphones and tablet computers. The increasing significance of mBI for research in combination with the tremendous economic growth potential forecasted for the next years is the driver for writing this thesis. The main aspect of the present thesis is a concept on how to develop a consistent mBI Strategy aligning all structures, processes and stakeholders to one standard set of goals and guidelines. Crucial points when implementing an mBI strategy are the definition of goals, the identification of risks and opportunities, the adaptation of mBI to the user context, the integration of mBI into the existing IT landscape, as well as a proper set-up of system architectures and security concepts. Besides analyzing the aspect of mBI strategy this thesis also considers the market situation of mBI. Clearly defined goals and the systematic development of a consistent mBI strategy which is in line with these goals can be considered as a crucial prerequisite for companies to successfully implement mBI.
Ziel dieser Diplomarbeit ist es, innerhalb von sechs Monaten eine gamebasierte Anwendung für Android-Smartphones zu entwickeln, die durch eng beieinander liegende Stationen historisches Wissen vermittelt. Die einzelnen Spielstationen sollen mit Hilfe von GPS1-Positionen festgelegt und erkannt werden. Als Gelände wurde die Burgruine Reichenstein in der Verbandsgemeinde Puderbach im Westerwald ausgewählt. Es soll untersucht werden, wie viele GPS-Stationen auf engem Raum unterzubringen sind und wie weit sie voneinander entfernt sein müssen, um gute Ergebnisse erzielen zu können. Dazu ist es nötig, sowohl den Grundriss der Burg als auch die Beschaffenheit des Geländes mit einzubeziehen.
An den einzelnen Stationen sollen auf spielerische Art und Weise historische Informationen über die Burgruine Reichenstein vermittelt werden. Neben der Recherche, der Konzepterstellung und der Implementierung umfasst diese Arbeit auch eine Evaluation, die eine Bewertung der Anwendung ermöglicht.
Diese Masterarbeit beschreibt und evaluiert die im Rahmen der Arbeit entwickelten Erweiterungen zur Schellings Segregationsimulation. Der Nobelpreisträger Thomas C. Schelling simulierte als erster ab 1969 die Segregation. Die dabei entstandenen Ergebnisse erlaubten eine genauere Analyse der auftretenden Phänomene. Uri Wilensky, Mitarbeiter der "Northwestern University", entwickelte seit 1999 eine Segregationssimulation in NetLogo.
Im Rahmen meiner Masterarbeit habe ich das NetLogo-Model von Uri Wilensky in sechs unterschiedlichen Szenarien weiterentwickelt.