<p>In this thesis, a 3D approach to visualize software metrics is presented. Software metrics are attributes of a piece of software or its specification. They generally contain a set of multivariate time-series data and can be displayed, for example, as a Kiviat diagram consisting of axes and polylines. The aim of this work is to design a Win32 application that can load multivariate time-series data from a file and visualize it as an interactive 3D Kiviat diagram.</p><p>There has been an approach that can display software metrics by using 2D Kiviat diagrams, but there are still some drawbacks on it. Since a better visualization of software metrics can help the developer to control the quality of software products more easily, this thesis improved the existing approach by extending 2D Kiviat diagram to 3D Kiviat diagram.</p>

<p>Our project presents the research on visualization of statistical contents. Here wewill introduce the concepts of visualization, software quality metrics andproposed visualization technique (line chart). Our aim to study the existingvisualization techniques for visualization of software metrics and then proposedthe visualization approach that is more time efficient and easy to perceive byviewer.In this project, we focus on the practical aspects of visualization of multipleprojects with respect to the versions and metrics. This project also gives animplementation of proposed visualization techniques of software metrics. In thisresearch based work, we have to compare practically the proposed visualizationapproaches. We will discuss the software development life cycle of our proposedvisualization system, and we will also describe the complete softwareimplementation of implemented software.</p>

In software visualization, but also in information visualization in general, there is a great need for evaluation of visualization metaphors. To reduce the amount of empirical studies a omputational approach has been applied successfully, e.g., to graph visualization. It is based on measurable aesthetic heuristics that are used to estimate the human perception and the processing of visualizations. This paper lays a foundation for adopting this approach to any field of information visualization by providing a method, the repertory grid technique, to identify aesthetics that are measurable, metaphor-specific, and relevant to the user in a structured and repeatable way. We identified 25 unique aesthetics and revealed that the visual appearance of the investigated visualizations is mainly influenced by the package structure whereby methods are underrepresented. These findings were used to improve existing visualizations.

Made available in DSpace on 2014-11-10T11:09:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2013-08-06Bitstream added on 2014-11-10T11:58:47Z : No. of bitstreams: 1 000786875.pdf: 3157101 bytes, checksum: 8d7cc7e4bd3ac445b9569b6dcfbdc90f (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A evolução de sistemas de software existentes para a tecnologia orientada a aspectos tem como primeiro passo a mineração de aspectos, que visa a identificar interesses transversais em código fonte, para serem encapsulados em aspectos. Diversas técnicas têm sido propostas para a mineração de aspectos, mas ainda com deficiências. Uma das causas dessas deficiências apontada na literatura é a apresentação inadequada dos resultados obtidos por tais técnicas. A Visualização de Software pode ser utilizada para analisar, interpretar e combinar resultados de técnicas de mineração de aspectos, sendo os resultados apresentados juntamente com características de programa. Neste trabalho é apresentada uma abordagem visual de múltiplas visões coordenadas com o propósito de prover um ambiente para a apresentação dos resultados gerados por técnicas de mineração de aspectos, para melhorar a compreensão do usuário ao analisá-los para futura refatoração para aspectos. As múltiplas visões coordenadas são utilizadas para permitir a análise: das associações baseadas em chamadas de métodos, em nível de classe e de método, permitindo a visualização da frequência de chamadas das unidades baseada na métrica fan-in; das dependências de controle e de dados entre instruções de programa; da estrutura de programa; de como conjuntos de instruções (fatias) são compostos em diversas classes; e do bytecode. O foco é investigar se a visualização contribui na compreensão de programas por meio dos resultados gerados usando as técnicas fatiamento de programa e análise de fan-in, propostas para minerar aspectos, de maneira complementar. Uma ferramenta de visualização de software, nomeada SoftV is4CA (Software Visualization for Code Analysis), foi desenvolvida para apoiar a abordagem visual proposta. O estudo preliminar mostrou que o modelo de coordenação proposto apoia a análise pela exploração de diferentes níveis de ... / The evolution of existing software systems to aspect-oriented technology has as first step the aspect mining, which aims to identify crosscutting concerns in source code to be encapsulated into aspects. Several techniques have been proposed for aspect mining, but still with shortcomings. One cause of these shortcomings pointed out in the literature is inadequate presentation of the results obtained by these techniques. Software Visualization can be used to analyze, interpret and combine results of aspect mining techniques, being the results presented with program characteristics. This work presents a visual approach of multiple coordinated views in order to provide an environment for the presentation of the results generated by aspect mining techniques, as well as to improve the understanding of the user to analyze them for future refactoring to aspects. The multiple coordinated views are used to allow the analysis: of associations based on method calls, at class and method levels, allowing visualization of the units call frequency based on fan-in metric; of the control and data dependencies between program instructions; of the program structure; of how instruction sets (slices) are composed in several classes; and of bytecode. The focus is to investigate whether visualization helps in program comprehension by the results generated using program slicing and fan-in analysis techniques, proposals for mining aspects in a complementary way. A software visualization tool, named SoftV is4CA (Software Visualization for Code Analysis), was developed to support the proposed visual approach. The preliminary study showed that the proposed coordination model supports the analysis by exploration of different levels of details

Orientador: Rogério Eduardo Garcia / Banca: Fabiano Cutigi Ferrari / Banca: Marcelo de Almeida Maia / Resumo: A evolução de sistemas de software existentes para a tecnologia orientada a aspectos tem como primeiro passo a mineração de aspectos, que visa a identificar interesses transversais em código fonte, para serem encapsulados em aspectos. Diversas técnicas têm sido propostas para a mineração de aspectos, mas ainda com deficiências. Uma das causas dessas deficiências apontada na literatura é a apresentação inadequada dos resultados obtidos por tais técnicas. A Visualização de Software pode ser utilizada para analisar, interpretar e combinar resultados de técnicas de mineração de aspectos, sendo os resultados apresentados juntamente com características de programa. Neste trabalho é apresentada uma abordagem visual de múltiplas visões coordenadas com o propósito de prover um ambiente para a apresentação dos resultados gerados por técnicas de mineração de aspectos, para melhorar a compreensão do usuário ao analisá-los para futura refatoração para aspectos. As múltiplas visões coordenadas são utilizadas para permitir a análise: das associações baseadas em chamadas de métodos, em nível de classe e de método, permitindo a visualização da frequência de chamadas das unidades baseada na métrica fan-in; das dependências de controle e de dados entre instruções de programa; da estrutura de programa; de como conjuntos de instruções (fatias) são compostos em diversas classes; e do bytecode. O foco é investigar se a visualização contribui na compreensão de programas por meio dos resultados gerados usando as técnicas fatiamento de programa e análise de fan-in, propostas para minerar aspectos, de maneira complementar. Uma ferramenta de visualização de software, nomeada SoftV is4CA (Software Visualization for Code Analysis), foi desenvolvida para apoiar a abordagem visual proposta. O estudo preliminar mostrou que o modelo de coordenação proposto apoia a análise pela exploração de diferentes níveis de ... / Abstract: The evolution of existing software systems to aspect-oriented technology has as first step the aspect mining, which aims to identify crosscutting concerns in source code to be encapsulated into aspects. Several techniques have been proposed for aspect mining, but still with shortcomings. One cause of these shortcomings pointed out in the literature is inadequate presentation of the results obtained by these techniques. Software Visualization can be used to analyze, interpret and combine results of aspect mining techniques, being the results presented with program characteristics. This work presents a visual approach of multiple coordinated views in order to provide an environment for the presentation of the results generated by aspect mining techniques, as well as to improve the understanding of the user to analyze them for future refactoring to aspects. The multiple coordinated views are used to allow the analysis: of associations based on method calls, at class and method levels, allowing visualization of the units call frequency based on fan-in metric; of the control and data dependencies between program instructions; of the program structure; of how instruction sets (slices) are composed in several classes; and of bytecode. The focus is to investigate whether visualization helps in program comprehension by the results generated using program slicing and fan-in analysis techniques, proposals for mining aspects in a complementary way. A software visualization tool, named SoftV is4CA (Software Visualization for Code Analysis), was developed to support the proposed visual approach. The preliminary study showed that the proposed coordination model supports the analysis by exploration of different levels of details / Mestre

Our project presents the research on visualization of statistical contents. Here wewill introduce the concepts of visualization, software quality metrics andproposed visualization technique (line chart). Our aim to study the existingvisualization techniques for visualization of software metrics and then proposedthe visualization approach that is more time efficient and easy to perceive byviewer.In this project, we focus on the practical aspects of visualization of multipleprojects with respect to the versions and metrics. This project also gives animplementation of proposed visualization techniques of software metrics. In thisresearch based work, we have to compare practically the proposed visualizationapproaches. We will discuss the software development life cycle of our proposedvisualization system, and we will also describe the complete softwareimplementation of implemented software.

In this thesis, a 3D approach to visualize software metrics is presented. Software metrics are attributes of a piece of software or its specification. They generally contain a set of multivariate time-series data and can be displayed, for example, as a Kiviat diagram consisting of axes and polylines. The aim of this work is to design a Win32 application that can load multivariate time-series data from a file and visualize it as an interactive 3D Kiviat diagram. There has been an approach that can display software metrics by using 2D Kiviat diagrams, but there are still some drawbacks on it. Since a better visualization of software metrics can help the developer to control the quality of software products more easily, this thesis improved the existing approach by extending 2D Kiviat diagram to 3D Kiviat diagram.

Submitted by Renata Lopes (renatasil82@gmail.com) on 2015-12-01T13:21:15Z No. of bitstreams: 1 jacimarfernandestavares.pdf: 4117614 bytes, checksum: 6d7763e08f1653c32b20373c9e55ec2b (MD5) / Made available in DSpace on 2015-12-01T13:21:15Z (GMT). No. of bitstreams: 1 jacimarfernandestavares.pdf: 4117614 bytes, checksum: 6d7763e08f1653c32b20373c9e55ec2b (MD5) Previous issue date: 2015-03-16 / CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / Existem diversas tecnologias desenvolvidas nas areas de manuten c~ao e evolu c~ao colaborativa de software associadas a visualiza c~ao de software, objetivando resolver problemas de empresas e grupos de usu arios. Em muitos casos e necess ario integrar solu c~oes dessas areas visando resolver um dado problema relacionado a evolu c~ao do software. Este problema se torna mais intenso quando se trata de equipes geogra camente distribu das. Neste sentido, foi desenvolvida GiveMe Infra, uma infraestrutura para apoio a realiza c~ao de atividades de manuten c~ao e evolu c~ao de software, realizadas por equipes co-localizadas ou geogra camente distribu das. Tais atividades s~ao apoiadas por diferentes visualiza c~oes de software que permitem ao usu ario obter diferentes perspectivas sobre as informa c~oes disponibilizadas. Um estudo experimental foi realizado objetivando veri car a viabilidade de uso da solu c~ao. Os resultados obtidos s~ao apresentados, bem como os trabalhos futuros em rela c~ao a infraestrutura proposta. / There are several technologies developed to support collaborative software maintenance and evolution, as well as software visualization, in order to solve problems of companies and group of users. In many cases is necessary to integrate solutions already available in these areas to solve a given problem. These problems become intense when geographically dispersed groups are involved in software maintenance and evolution activities. In this sense, an infrastructure, named GiveMe Infra, was developed to support these activities when performed by co-located or geographically distributed teams. These activities are supported by di erent software visualizations that allow the user get di erent perspectives about the provided information. An experimental study were carried out aiming to verify the feasibility of the solution as well as the hypotheses. The obtained results related to the experiments and future works are presented

Le développement des logiciels et leur restructuration deviennent de plus en plus complexes à cause de l'adoption massive des architectures parallèles, ce qui nécessite une expertise considérable de la part des développeurs. Bien que des nombreux modèles et langages de programmation permettent de créer des programmes efficaces, ils n'offrent pas de support spécifique à la restructuration des programmes existants afin d'en augmenter l'efficacité. En même temps, les approches automatiques sont trop conservatives et insuffisamment précises pour atteindre une partie substantielle de la performance du système sans que le développeur aie à fournir des informations sémantiques supplémentaires. Pour répondre à ces défis, nous adoptons l'approche de la restructuration interactive des programmes qui lie la manipulation semi-automatique des programmes avec la visualisation des logiciels. Dans cette thèse, l'approche de restructuration interactive est illustrée par l'extension du modèle polyédrique - une représentation des programmes moderne et puissante - pour permettre la manipulation de haut niveau ainsi que par la conception et l'évaluation d'une interface visuelle à manipulation directe pour la restructuration des programmes. Cette interface visualise l'information qui n'était pas immédiatement accessible dans la représentation textuelle et permet de manipuler des programmes sans en réécrire le code. Nous proposons également une représentation de l'optimisation de programme, calculée automatiquement, telle que le développeur puisse la comprendre et réutiliser facilement ainsi que la modifier d'une manière textuelle ou visuelle dans le cadre du partenariat homme-machine. Afin de représenter plusieurs aspects de la restructuration des programmes, nous concevons et évaluons une nouvelle interaction qui permet de communiquer l'information supplémentaire et non-cruciale pour la tâche à accomplir. Après une étude empirique de la distribution d'attention des développeurs face aux représentations textuelles et visuelles des programmes, nous discutons des implications pour la conception des outils d'aide à la programmation dans le cadre du modèle d'interaction instrumentale. La restructuration interactive des programmes est supposée faciliter la manipulation des programmes dans le but d'optimisation, la rendre plus efficace et plus largement adopté. / Software development and program manipulation become increasingly complex with the massive adoption of parallel architectures, requiring significant expertise from developers. While numerous programming models and languages allow for creating efficient programs, they fall short at helping developers to restructure existing programs for more effective execution. At the same time, automatic approaches are overly conservative and imprecise to achieve a decent portion of the systems' performance without supplementary semantic information from the developer. To answer these challenges, we propose the interactive program restructuring approach, a bridge between semi-automatic program manipulation and software visualization. It is illustrated in this thesis by, first, extending a state-of-the-art polyhedral model for program representation so that it supports high-level program manipulation and, second, by designing and evaluating a direct manipulation visual interface for program restructuring. This interface provides information about the program that was not immediately accessible in the code and allows to manipulate programs without rewriting. We also propose a representation of an automatically computed program optimization in an understandable form, easily modifiable and reusable by the developer both visually and textually in a sort of human-machine partnership. To support different aspects of program restructuring, we design and evaluate a new interaction to communicate supplementary information, not critical for the task at hand. After an empirical study of developers' attention distribution when faced with visual and textual program representation, we discuss the implications for design of program manipulation tools in the instrumental interaction paradigm. We expect interactive program restructuring to make program manipulation for optimization more efficient and widely adopted.

In C-Quellcode wird der C-Präprozessor häufig verwendet, um ein Softwaresystem für verschiedene Ausführungsumgebungen und Varianten zu konfigurieren. Anweisungen zur bedingten Kompilierung ermöglichen es, dass Quellcodeteile bei der Verarbeitung durch den Präprozessor ein- oder ausgeblendet werden. Dies erzeugt verschiedene Varianten der Software, erschwert jedoch die Lesbarkeit und Wartung des Quellcodes. Insbesondere die Auswirkungen einzelner Makrodefinitionen sind oft nicht einfach zu ermitteln. In dieser Arbeit soll der Frage nachgegangen werden, wie das Verständnis des Quellcodes und der Auswirkungen von Makrodefinitionen mithilfe von Softwarevisualisierung unterstützt werden kann. Dazu wird eine bestehende Visualisierungsmetapher an den Anwendungsfall angepasst. Anschließend folgt der Entwurf eines Verarbeitungsprozesses, um den Quellcode automatisiert darstellen zu können. Mithilfe eines Prototyps wird die Machbarkeit gezeigt.:Inhaltsverzeichnis Inhaltsverzeichnis I Abbildungsverzeichnis III Tabellenverzeichnis IV Listings V Abkürzungsverzeichnis VI 1 Einleitung 1 1.1 Motivation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Zielsetzung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Vorgehensweise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.4 Stand der Forschung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Grundlagen 6 2.1 Die Programmiersprache C . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1.1 Eigenschaften . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1.2 Wichtige Sprachelemente . . . . . . . . . . . . . . . . . . . . . . 7 2.1.3 Der C-Präprozessor . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2.1.4 Ablauf der Kompilierung . . . . . . . . . . . . . . . . . . . . . . . 10 2.2 Softwarevisualisierung . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2.2.1 Eigenschaften und Ziele . . . . . . . . . . . . . . . . . . . . . . . 11 2.2.2 Getaviz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.3 Graphdatenbanken und Neo4j . . . . . . . . . . . . . . . . . . . . . . . . 14 3 Konzeption 17 3.1 Anwendungsfall . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 3.2 Extraktion der benötigten Informationen . . . . . . . . . . . . . . . . . . . 19 3.2.1 Sprachmittel im C-Standard . . . . . . . . . . . . . . . . . . . . . 19 3.2.2 Variabilität in C-Quellcode . . . . . . . . . . . . . . . . . . . . . . 21 3.2.3 Extraktion von Variabilität . . . . . . . . . . . . . . . . . . . . . . 25 3.2.4 Entwurf eines Graphmodells für C-Quellcode . . . . . . . . . . . . 29 3.3 Visualisierung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 3.3.1 Analyse bestehender Metaphern . . . . . . . . . . . . . . . . . . . 34 3.3.2 Darstellung der Variabilität in der Benutzungsoberfläche . . . . . . 37 3.4 Überblick über den Generierungsprozess . . . . . . . . . . . . . . . . . . . 39 4 Implementierung 42 4.1 Vorverarbeitung des Quellcodes . . . . . . . . . . . . . . . . . . . . . . . 42 4.1.1 Anpassung von TypeChef . . . . . . . . . . . . . . . . . . . . . . 42 4.1.2 Aufbau des Abstract Syntax Tree . . . . . . . . . . . . . . . . . . 43 4.2 Das jQAssistant-Plugin . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 4.2.1 Aufbau und grundsätzliche Funktionsweise . . . . . . . . . . . . . 44 4.2.2 Wichtige Descriptors und Relations . . . . . . . . . . . . . . . . . 46 4.2.3 Verarbeitung der XML-Datei . . . . . . . . . . . . . . . . . . . . . 46 4.2.4 Parsen der Bedingungen . . . . . . . . . . . . . . . . . . . . . . . 49II 4.3 Anpassung von Getaviz . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 4.4 Erweiterung der graphischen Oberfläche . . . . . . . . . . . . . . . . . . . 52 4.5 Test und Evaluation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 5 Fazit 55 5.1 Zusammenfassung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55 5.2 Kritische Würdigung . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 5.3 Ausblick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 A Übersicht über die Sprachmittel im C-Standard VII Literaturverzeichnis XI