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6th acm SIGCHI symposium on Engineering Interactive Computing Systems, EICS 2014

作者： AlTarawneh, Ragaad Bauer, Jens Humayoun, Shah Rukh Ebert, Achim Liggesmeyer, Peter Computer Graphics and HCI Group Germany Software Engineering Dependability Group University of Kaiserslautern Gottlieb-Daimler-Str. 67663 Kaiserslautern Germany

ISBN: (纸本)9781450327251

In this paper, we present demonstration of a 2Dplus3D visual interactive environment called ESSAVis++. It is an enhanced version of the ESSAVis platform and was designed to overcome the limitations of the previous version. Its goal is to facilitate the collaboration between different engineers and to lead to better understanding of the analyzing process of safety aspects in embedded systems. In this work, we provide an overview of ESSAVis++ platform and focus on the new modifications and the set of improvements that we added for providing the enhanced and intuitive visualization features to facilitate extracting important safety aspects about the underlying embedded system. Copyright © 2014 acm 978-1-4503-2725-1/14/06.

关键词： visualization

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Visual comparison of software architectures

Visual comparison of software architectures

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5th acm symposium on software visualization (softvis)

作者： Beck, Fabian Diehl, Stephan Univ Trier Dept Comp Sci D-54286 Trier Germany

ISBN: (纸本)9781450304948

Reverse engineering methods produce different descriptions of software architectures. In this article we address the task of exploring and comparing these descriptions. We present a novel visualization technique to compare architectures consisting of a decomposition of the software system and the dependencies among the code entities. This technique uses a visual representation of an adjacency matrix to provide a scalable analysis tool. Advanced layout features such as an automatic level of detail algorithm and sorting strategies improve the readability of the visualization. Using a case study, we show how this technique can be applied in practice.

关键词： software architecture hierarchy comparison graph visualization

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Visual comparison of software architectures

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INFORMATION visualization 2013年第2期12卷 178-199页

作者： Beck, Fabian Diehl, Stephan Univ Trier Dept Comp Sci D-54286 Trier Germany

关键词： software architecture hierarchy comparison graph visualization

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Understanding software evolution with software cities

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INFORMATION visualization 2013年第2期12卷 200-216页

作者： Steinbrueckner, Frank Lewerentz, Claus Brandenburg Tech Univ Cottbus Cottbus Germany

software cities are visualizations of software systems in the form of virtual cities. They are used as platforms to integrate a large variety of product- and process-related analysis data. Their usability, however, for real-world software development often suffers from their inability to appropriately deal with software changes. Even small structural changes can disrupt the overall structure of the city, which in turn corrupts the mental maps of its users. In this article we describe a systematic approach to utilize the city metaphor for the visualization of evolving software systems as growing software cities. The main contribution is a new layout approach which explicitly takes the development history of software systems into account. The approach has two important effects: first, it creates a stable gestalt of software cities even when the underlying software systems evolve;thus, by preserving its users' mental maps these cities are especially suitable for use during ongoing system development. Second, it makes history directly visible in the city layouts, which allows for supporting novel analysis scenarios. We illustrate such scenarios by presenting several thematic cities' maps, each capturing specific development history aspects.

关键词： software cities software landscapes software evolution software visualization metrics software comprehension

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Interactive ambient visualizations for soft advice

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INFORMATION visualization 2013年第2期12卷 107-132页

作者： Murphy-Hill, Emerson Barik, Titus Black, Andrew P. N Carolina State Univ Raleigh NC 27695 USA Portland State Univ Portland OR 97207 USA

Some software packages offer the user soft advice: recommendations that are intended to help the user create high-quality artifacts but which may turn out to be bad advice. It is left to the user to determine whether the soft advice really will improve quality and to decide whether to adopt it. visualizations can help the user in making this decision, but we believe that conventional visualizations are less than ideal. In this article, we describe an interactive ambient visualization to help users identify, understand, and interpret soft advice. Our visualization was developed to help programmers interpret code smells, which are indications that a software project may be suffering from design problems. We describe a laboratory experiment with 12 programmers that tests several hypotheses about our visualization. The findings suggest that our tool helps programmers to identify smells more effectively and to make more informed judgments about the design of the program under development. We then describe an application of our visualization technique in another domain: an English style and grammar advisor. This second application suggests that our technique can be applied to several domains and also suggests how the technique must be varied to make it domain specific.

关键词： software refactoring code smells design soft advice visualization ambient grammar style

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Heapviz: Interactive heap visualization for program understanding and debugging

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INFORMATION visualization 2013年第2期12卷 163-177页

作者： Kelley, Sean Aftandilian, Edward Gramazio, Connor Ricci, Nathan Su, Sara L. Guyer, Samuel Z. Tufts Univ Dept Comp Sci Medford MA USA

In this paper we present Heapviz, a tool for visualizing and exploring snapshots of the heap obtained from a running Java program. Unlike existing tools, such as traditional debuggers, Heapviz presents a global view of the program state as a graph, together with powerful interactive capabilities for navigating it. Our tool employs several key techniques that help manage the scale of the data. First, we reduce the size and complexity of the graph by using algorithms inspired by static shape analysis to aggregate the nodes that make up a data structure. Second, we implement a powerful visualization component whose interactive interface provides extensive support for exploring the graph. The user can search for objects based on type, connectivity, and field values;group objects;and color or hide and show each group. The user may also inspect individual objects to see their field values and neighbors in the graph. These interactive abilities help the user manage the complexity of these huge graphs. By applying Heapviz to both constructed and real-world examples, we show that it provides programmers with a powerful and intuitive tool for exploring program behavior.

关键词： software visualization program visualization interactive graph visualization interactive visualization graph visualization force-directed layout

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Visualizing offscreen elements of node-link diagrams

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INFORMATION visualization 2013年第2期12卷 133-162页

作者： Frisch, Mathias Dachselt, Raimund Tech Univ Dresden Interact Media Lab D-01062 Dresden Germany

Visual representations of node-link diagrams are very important for the software development process. In many situations, large diagrams have to be explored, whereby diagram elements of interest are often clipped from the viewport and are therefore not visible. Thus, in state-of-the-art modeling tools, navigation is accompanied by time-consuming panning and zooming. One solution to this problem is offscreen visualization techniques. Usually, they indicate the existence and direction of clipped elements by overlays at the border of the viewport. In this article, we contribute the application of offscreen visualization techniques to the domain of node-link diagrams in general and to Unified Modeling Language class diagrams in particular. The basic idea of our approach is to represent offscreen nodes by proxy elements located within an interactive border region around the viewport. The proxies show information of the associated offscreen nodes and can be used to quickly navigate to the respective node. In addition, we contribute techniques that preserve the routing of edges during panning and zooming and present strategies to make our approach scalable to large diagrams. We conducted a formative pilot study of our first prototype. Based on the observations made during the evaluation, we suggest how particular techniques should be combined. Finally, we ran a user evaluation to compare our technique with a traditional zoom+pan interface. The results showed that our approach is significantly faster for exploring relationships within diagrams than state-of-the-art interfaces. We also found that the offscreen visualization combined with an additional overview window did not improve the orientation within an unknown diagram. However, an overview should be offered as a cognitive support.

关键词： Offscreen visualization Unified Modeling Language contextual view interaction node-link diagrams navigation

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softvis'10 - Proceedings of the 2010 International symposium on software visualization, Co-located with VisWeek 2010

SOFTVIS'10 - Proceedings of the 2010 International Symposium...

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2010 5th International symposium on software visualization, softvis'10, Co-located with VisWeek 2010

ISBN: (纸本)9781450304948

The proceedings contain 32 papers. The topics discussed include: acm SIGSOFT distinguished paper award: an interactive ambient visualization for code smells;CodePad: interactive spaces for maintaining concentration in programming environments;user evaluation of polymetric views using a large visualization wall;software evolution storylines;a map of the heap: revealing design abstractions in runtime structures;dependence cluster visualization;towards anomaly comprehension: using structural compression to navigate profiling call-trees;embedding spatial software visualization in the IDE: an exploratory study;visualizing windows system traces;understanding complex multithreaded software systems by using trace visualization;acm SIGSOFT distinguished paper award: off-screen visualization techniques for class diagrams;an automatic layout algorithm for BPEL processes;and visual comparison of software architectures.

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Visualizing software Entities Using a Matrix Layout

Visualizing Software Entities Using a Matrix Layout

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5th acm symposium on software visualization (softvis)

作者： Zeckzer, Dirk Univ Kaiserslautern Kaiserslautern Germany

ISBN: (纸本)9781450304948

Understanding legacy systems is one of the major tasks in software engineering. The relations between different entities, e.g., packages and classes in Java, are important for this understanding process. We propose a matrix based visualization of the relations between these software entities. We explore several design decisions and show what works and what does not work.

关键词： software visualization graphs matrix layout design decisions

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Exploring the Inventor's Paradox: Applying Jigsaw to software visualization

Exploring the Inventor's Paradox: Applying Jigsaw to Softwar...

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5th acm symposium on software visualization (softvis)

作者： Ruan, Haowei Anslow, Craig Marshall, Stuart Noble, James Victoria Univ Wellington Sch Engn & Comp Sci Wellington New Zealand

ISBN: (纸本)9781450304948

software visualization research has typically focussed on domain specific tools and techniques. In this paper, we evaluate applying a general purpose visual analytics tool Jigsaw to visualize the JHotDraw open source software system. We describe how Jigsaw can be applied to visualize software, and show how it can support some program comprehension tasks.

关键词： software visualization visual analytics

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