Prof. Dr. Jürgen Döllner

Willy Scheibel

Willy Scheibel

Research assistent for software analytics.

Research topics:

  • Visualizing changing hierarchies
  • Hardware-accelerated systems design

Other interests:

  • Computer Graphics
  • Game Design


Tel.: +49-(0)331 5509-3914
Fax: +49-(0)331 5509-172
Room: H-2.21
Email: willy.scheibel(at)hpi.de



Teaching activities

Summer Term 2017

  • Lecture "Advanced Programming Techniques for C++" (tutor)
  • Seminar "Advanced Information Visualization" (tutor)

Winter Term 2016/1017

  • Lecture "Advanced Programming in C++" (tutor)
  • Seminar "Methods and Techniques of Information Visualization" (supervisor)
  • Masters Project "Real-time Monitoring of Massive File Systems" (supervisor)

Summer term 2016

  • Lecture "Computer Graphics II" (tutor)
  • Seminar "Methods and Techniques of Software Visualization" (tutor)
  • Bachelor project "Massive Information Mining for Software Analytics" (supervisor)

Winter term 2015/2016

  • Lecture "Computer Graphics I" (tutor)
  • Seminar "Systems Engineering for Software Analytics" (tutor)
  • Bachelor project "Massive Information Mining for Software Analytics" (supervisor)

Summer term 2015

  • Lecture "Computer Graphics I" (tutor)
  • Seminar "Visual Software Analytics" (tutor)
  • Seminar "Programmierung computergrafischer Verfahren mit C++ und OpenGL" (tutor & co-lecturer)
  • Bachelor project "Software Analytics" (supervisor)

Winter term 2014/2015

  • Lecture "Computer Graphics II" (tutor)
  • Seminar "Visualization for Interactive Software Analytics" (tutor)
  • OpenHPI course "Automated Visual Software Analytics" (tutor)
  • Bachelor project "Software Analytics" (supervisor)

Summer term 2014

  • Seminar "Grafikprogrammierung mit OpenGL und C++" (co-lecturer)
  • Seminar "Information Visualization" (co-tutor)

Winter term 2013/2014

  • Seminar "Software-Analyse und Visualisierung" (co-tutor)


Interactive Revision Exploration using Small Multiples of Software Maps

Scheibel, Willy; Trapp, Matthias; Döllner, Jürgen in 7th International Conference on Information Visualization Theory and Applications page 131-138 . 2016 .

To explore and to compare different revisions of complex software systems is a challenging task as it requires to constantly switch between different revisions and the corresponding information visualization. This paper proposes to combine the concept of small multiples and focus+context techniques for software maps to facilitate the comparison of multiple software map themes and revisions simultaneously on a single screen. This approach reduces the amount of switches and helps to preserve the mental map of the user. Given a software project the small multiples are based on a common dataset but are specialized by specific revisions and themes. The small multiples are arranged in a matrix where rows and columns represents different themes and revisions, respectively. To ensure scalability of the visualization technique we also discuss two rendering pipelines to ensure interactive frame-rates. The capabilities of the proposed visualization technique are demonstrated in a collaborative exploration setting using a high-resolution, multi-touch display.
Further Information
Tags Software_visualization cgs interactive_visualization_techniques small_multiples software_maps visual_analytics