<p>Reverse Engineering of software is a complex task. It is supported by various analyses and the computation of certain software quality metrics. To get an overview of the structure of the analysed software it is often necessary to visualize the relations between different components of software.</p><p>The VizzAnalyzer tool was developed for these purposes and allows visualizing the internal structure of software systems as UML2.0 class diagrams. The existing Eclipse-based visualization plug-in does not allow to automatically lay out the computed graph. Applying the layout manually is not feasible for larger graphs. A proper layout is needed to understand the provided information intuitively and the usefulness of the visualization is, on top of that, strongly connected to its layout.</p><p>In this thesis, we first state requirements for the development and implementation process of a suitable layout algorithm. We further describe the development, design, and implementation of the Sugiyama layout algorithm into the existing Eclipse-based visualization plug-in. We add these new functionalities to be able to automatically compute a layout for given UML2.0 class diagrams achieving a proper Sugiyama layout for this type of diagrams.</p><p>At the end of this thesis, we compare the results achieved by the implemented algorithm with the results achieved by yEd given the same diagrams as input.</p>

Reverse Engineering of software is a complex task. It is supported by various analyses and the computation of certain software quality metrics. To get an overview of the structure of the analysed software it is often necessary to visualize the relations between different components of software. The VizzAnalyzer tool was developed for these purposes and allows visualizing the internal structure of software systems as UML2.0 class diagrams. The existing Eclipse-based visualization plug-in does not allow to automatically lay out the computed graph. Applying the layout manually is not feasible for larger graphs. A proper layout is needed to understand the provided information intuitively and the usefulness of the visualization is, on top of that, strongly connected to its layout. In this thesis, we first state requirements for the development and implementation process of a suitable layout algorithm. We further describe the development, design, and implementation of the Sugiyama layout algorithm into the existing Eclipse-based visualization plug-in. We add these new functionalities to be able to automatically compute a layout for given UML2.0 class diagrams achieving a proper Sugiyama layout for this type of diagrams. At the end of this thesis, we compare the results achieved by the implemented algorithm with the results achieved by yEd given the same diagrams as input.

<p> </p><p>Measuring the quality of software is a complex task. Various analyses and computations of software quality metrics support this process. For certain investigations it is helpful to visualize the relations between different components of software in order to check quality aspects. The VizzAnalyzer tool was developed for these purposes and allows the visualization of software systems as UML2.0 class diagrams. The visualization plug-in lays out the internal structure and ensures a high readability of the layouts.</p><p>In this thesis the layout algorithm embedded in the plug-in is optimized to increase its performance and the readability of layouts computed. The interaction with other applications is an important aspect. The current visualization plug-in is extended to meet the requirements of the Quick Orientation Viewer and to support future applications. The optimizations and extensions are further addressed to enhance the usability and the functions provided by the layout algorithm.</p><p> </p>

Measuring the quality of software is a complex task. Various analyses and computations of software quality metrics support this process. For certain investigations it is helpful to visualize the relations between different components of software in order to check quality aspects. The VizzAnalyzer tool was developed for these purposes and allows the visualization of software systems as UML2.0 class diagrams. The visualization plug-in lays out the internal structure and ensures a high readability of the layouts. In this thesis the layout algorithm embedded in the plug-in is optimized to increase its performance and the readability of layouts computed. The interaction with other applications is an important aspect. The current visualization plug-in is extended to meet the requirements of the Quick Orientation Viewer and to support future applications. The optimizations and extensions are further addressed to enhance the usability and the functions provided by the layout algorithm.