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The advantage of virtual networks is to test routing-algorithms or distributed software in an easy-to-use, cheap and well-arranged way. Optimized Link State Routing (OLSR) and Babel are two modern routing-algorithms for mobile ad-hoc networks that distinguish faulty links from good link connections in their routing process. Typically virtual networks provide nearly perfect link connections without any network traffic disruptions. The Traffic Control (tc) tool is able to manipulate connections in terms of delay and packet loss.
In this bachelor thesis virtual network scenarios are created with VNUML and Qemu and manipulated with tc in order to analyze the behavior of ad-hoc routing algorithms like Babel and OLSR. The behavior of well-known TCP congestion control algorithms, e.g., TCP Vegas and TCP Reno are analyzed, too.
The principles of project management are due to the influences of economic conditions and technological development in transition [Wills 1998 & Jonsson et al. 2001]. The increasing in-ternationalization, shortened time to market, changing labor costs and the increasing involve-ment of professionals distributed geographical locations are drivers of the transformations of the project landscape [Evaristo/van Fenema 1999]. Resulting from this, the use of collabora-tive technologies is a crucial factor for the success of a project. [Romano et al. 2002]. Previous research on the use of collaborative technologies for project management purposes focuses especially the development of model-like, universal system architectures to identify the requirements for a specially designed collaborative project management system. This thesis investigates the challenges and benefits that arise when an organisation imple-ments business software for the purpose of collaborative project management.
Within the scope of this bachelor thesis, a survey targeting the alumni of the Department 4: Computer Science of the University of Koblenz-Landau was planned, realized and evaluated. The goal was to support the Task Force Bachelor Master that was in charge of the re-accreditation process of the study courses. At first, the theoretical fundament of the survey design was acquired via desk research. Moreover, the analysis of past surveys of similar character lead to getting an impression of the requirements. Under consideration of recent changes, a survey prototype was created and improved following the insights from a pre-test. Using the open source tool LimeSurvey, the final version was implemented. The platform was used as the technical basis of the survey. The recipients included members of alumni clubs as well as recent alumni from the last years.
The survey lead to insights about the satisfaction of the alumni with their study course and the study situation in general. Furthermore, the opinion regarding two new master courses, E-Government and Web Science, was requested. The feedback from four of the study courses was enough to give significant results, for the other five courses it was only possible to interpret the general statements. All in all, there was a high rate of satisfaction with the studies.
Additionally, it was possible to collect suggestions for improvements and criticism. The main topics were internationality, emphasis on study topics, freedom of choice/specialization and relevancy to practice. As a result of the survey, a recommendation was verbalized, that should lead to an improvement in quality and need of the teaching in the Department 4: Computer Science in combination with the detailed results.
Especially e-government projects have a complex stakeholder structure: governments, businesses, non-profits and private stakeholders in different forms and roles are involved or affected by e-government projects. Consequently, the success of ICT projects critically depends on the integration of different stakeholder groups in the design processes of e-government solutions. In this context, stakeholder participation is sought therefore useful initiatives like open government and good governance drive this process forward. Although it is important to analyze the objectives, expectations and power characteristics of project participants and project stakeholders, the determinations of the stakeholder groups through a so called stakeholder analysis are insufficiently methodically developed.
The aim of this bachelor thesis is to pick up the stakeholder theories, stakeholder participation theories, stakeholder analysis and transfer it to an administrative level as well as to check their applicability. This will be done by explaining and systematizing appropriate procedures for the classification and mapping of stakeholder groups, through well-known stakeholder theories of Freeman, Mitchel and Rowley. In order to generate recommendations for future e-government projects, the application of stakeholder theories in two e-government projects with stakeholder involvement will be reviewed. It is also important to work out how stakeholder groups can be actively involved in the developmental processes in concrete e-government projects by using Web 2.0 possibilities. The role of Web 2.0 applications as an additional channel of communication and participation tool will be presented and evaluated.
The result is a guide, which supports successful participation of stakeholders in projects, by analyzing the process for stakeholder identification, stakeholder grouping and prioritization and showing instructions and benefits for using Web 2.0.
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.
Procedural content generation, the generation of video game content using pseudo-random algorithms, is a field of increasing business and academic interest due to its suitability for reducing development time and cost as well as the possibility of creating interesting, unique game spaces. Although many contemporary games feature procedurally generated content, the author perceived a lack of games using this approach to create realistic outer-space game environments, and the feasibility of employing procedural content generations in such a game was examined. Using current scientific models, a real-time astronomical simulation was developed in Python which generates star and planets object in a fictional galaxy procedurally to serve as the game space of a simple 2D space exploration game where the player has to search for intelligent life.
This thesis addresses the implementation of a particle simulation of an explosion. The simulation will be displayed via ray tracing in near real time. The implementation makes use of the openCL standard. The focus of research in this thesis is to analyse the performance of this combination of components.
This paper critically examines the Google Calendar. For this purpose, the offered functions of the core product are studied on privacy aspects. On one hand, it is identified, to which extent the product could infringe the users" privacy, on the other accuring risks are discussed. Furthermore, the functions in terms of their use for both, the service provider Google and for the user, are considered. A detailed analysis demonstrates the critical aspects, in which we have to decide between privacy and functionality. The identified solutions to minimize discussed risks of IT security mechanisms, are presented, discussed and analyzed in terms of their feasibility. Afterwards the individual solutions are summarized in a security concept and other requirements are explained. Finally, a Firefox-Addon which implements the described solution concept should be created, to resolve the existing weaknesses to the best of its ability. Ultimately, the functionality of the addon with technical implementation is illustrated in detail.
Development of an Android Application for the Recognition and Translation of Words in Camera Scenes
(2012)
This bachelor- thesis describes the conception and implementation of a translation software for the Android platform. The specific feature of the software is the independent text recognition based on the view of the camera. This approach aims to enhance and accelerate the process of translation in certain situations. After an introduction into text recognition, the underlying technologies and the operation system Android useful applications are described. Then the concept of the software is created and the implementation examined. Finally an evaluation is conducted to identify strengths and weaknesses of the software.
Regarding the rapidly growing amount of data produced every year and the increasing acceptance of Enterprise 2.0 enterprises have to care about the management of their data more and more. Content created and stored in an uncoordinated manner can lead to data-silos (Williams & Hardy 2011, p.57), which result in long search times, inaccessible data and in consequence monetary losses. The "expanding digital universe" forces enterprises to develop new archiving solutions and records management policies (Gantz et al. 2007, p.13). Enterprise Content Management (ECM) is the research field that deals with these challenges. It is placed in the scientific context of Enterprise Information Management. This thesis aims to find out to what extent current Enterprise Content Management Systems (ECMS) support these new requirements, especially concerning the archiving of Enterprise 2.0 data. For this purpose, three scenarios were created to evaluate two different kinds of ECMS (one Open Source - and one proprietary system) chosen on the basis of a short marketrnresearch. The application of the scenarios reveals that the system vendors actually face the industry- concerns: both tools provide functionality for the archiving of data arising from online collaboration and also business records management capabilities but the integration of those topics is not, or is only inconsistently solved. At this point new questions - such as, "Which datarngenerated in an Enterprise 2.0 is worth being a record?" - arise and should be examined in future research.