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In the last years the e-government concentrated on the administrative aspects of administrative modernisation. In the next step the e-discourses will gain in importance as an instrument of the public-friendliness and means of the e-democracy/e-participation. With growing acceptance of such e-discourses, these will fastly reach a complexity, which could not be mastered no more by the participants. Many impressions, which could be won from presence discussions, will be lacking now. Therefore the exposed thesis has the objective of the conception and the prototypical implementation of an instrument (discourse meter), by which the participants, in particular the moderators of the e-discourse, are capable to overlook the e-discourse at any time and by means of it, attain their discourse awareness. Discourse awareness of the present informs about the current action in the e-discourse and discourse awareness of the past about the past action, by which any trends become visible. The focus of the discourse awareness is located in the quantitative view of the action in the e-discourse. From the model of e-discourse, which is developed in this thesis, the questions of discourse awareness are resulting, whose concretion is the basis for the implementation of the discourse meter. The discourse sensors attached to the model of the e-discourse are recording the actions of the e-discourse, showing events of discourse, which are represented by the discourse meter in various forms of visualizations. The concept of discourse meter offers the possibility of discourse awareness relating to the present as monitoring and the discourse awareness relating to the past as query (quantitative analysis) to the moderators of the e-discourse.
Problems in the analysis of requirements often lead to failures when developing software systems. This problem is nowadays being faced by requirements engineering. The early involvement of all kinds of stakeholders in the development of such a system and a structured process to elicitate and analyse requirements have made it a crucial factor as a first step in software development. The increasing complexity of modern softwaresystems though leads to a rising amount of information which has to be dealt with during analysis. Without the support of appropriate tools this would be almost impossible to do. Especially in bigger projects, which tend to be spatially distributed, an effective requirements engineering could not be implemented without this kind of support. Today there is a wide range of tools dealing with this matter. They have been in use since some time now and, in their most recent versions, realize the most important aspects of requirements engineering. Within the scope of this thesis some of these tools will be analysed, focussing on both the major functionalities concerning the management of requirements and the repository of these tools. The results of this analyis will be integrated into a reference model.
This work represents a quantitative analysis and visualisation of scar tissue of the left ventricular myocard. The scar information is shown in the late enhancement data, that highlights the avitale tissue with the help of a contrast agent. Through automatic methods, the scar is extracted from the image data and quantifies the size, location and transmurality. The transmurality shows a local measurement between the heart wall und the width of the scar. The developed methods help the cardiologist to analyse the measurement, the reason and the degree of the heart failure in a short time period. He can further control the results by several visual presentations. The deformation of the scar tissue over the heart cycle is implemented in another scientific work. A visual improvement of the deformation result which extracts the scar out of the data is aspired. The avital tissue is shown in a more comfortable way by eliminating the unnecessary image information and therefore improves the visual analysis of the pumping heart. Both methods show a detailed analysis of the scar tissue. This supports the clinic practical throughout the manual analysis.
In dieser Studienarbeit wird ein Verfahren zur Extraktion eines Oberflächenbegrenzungsmodells aus einem Tiefenbild vorgestellt. Das Modell beschreibt die im Tiefenbild dargestellte Szene durch die Geometrie und die Topologie der planaren Flächen, die in der Szene gefunden werden. Die Geometrie ist gegeben durch die Angabe der Ebenengleichungen der gefundenen Flächen sowie der 3D-Koordinaten der Eckpunkte der Polygone, die diese Flächen beschreiben. Die Informationen über die Topologie der Szene besteht aus einer Nachbarschaftsliste, die für jede Flaeche angibt, über welche Kante diese Fläche mit welcher anderen Fläche verbunden ist. Aufbauend auf einem Algorithmus zur Tiefenbildsegmentierung aus PUMA werden die Polygone bestimmt, die die Flächen der Szene beschreiben. Anschließend wird versucht, diese Polygone über Kanten und Eckpunkte zu verbinden, um ein möglichst geschlossenes Modell der Szene zu erhalten.
Currently more than 850 biological databases exist. The majority of biological knowledge is not in these databases but rather contained as free text in scientific literature. For systems biology tasks it is often necessary to integrate and extract data from heterogeneous databases and free text as well as to analyse the information in the context of experimental data. ONDEX is an integration framework which aims to address these challenges by combining features of database integration, text mining and sequence analysis with methods for graph-based data analysis and visualisation. The main topics of this diploma thesis are the redesign of the ONDEX backend, the development of a data exchange format, the development of a query environment and the allocation of Web services for data integration, data exchange and queries. These Web services allow backend workflow control from both local and remote workstations.
Die Vorwärtsfahrt mit einem einachsigen Anhänger stellt für die meisten Fahrer keine große Schwierigkeit dar. Das Zugfahrzeug gibt die Richtung vor und der Anhänger wird mitgezogen. Jedoch ist das Rückwärtsfahren mit Anhänger für den ungeübten Fahrer oft sehr kompliziert, da die Lenkmanöver für eine bestimmte Richtungsänderung nicht intuitiv sind und ein "Umdenken" erfordern. Will man beispielsweise den Anhänger um eine Linkskurve fahren, so muss das Zugfahrzeug zunächst nach rechts gelenkt werden, damit der Anhänger linksherum geschoben wird. Schnell passieren Fehler und ein Unfall mit Sachschaden kann eine mögliche Folge sein. Besonders Fahrer, die nur gelegentlich mit einem Anhänger unterwegs sind, haben bei der Rückwärtsfahrt mit Anhänger Probleme.