Prof. Dr. Jürgen Döllner

Paper accepted for IVAPP 2017

The paper "Reducing Visual Complexity in Software Maps using Importance-based Aggregation of Nodes" by Daniel Limberger, Willy Scheibel, Sebastian Hahn, and Jürgen Döllner has been accepted as a contribution to the 8th International Conference on Information Visualization Theory and Applications (IVAPP 2017). The conference will be held in Porto, Portugal from the 27th of February to 1st of March and is part of the VISIGRAPP 2017 conference.



Depicting massive software system data using software maps can result in visual clutter and increased cognitive load. This paper introduces an adaptive level-of-detail (LoD) technique that uses scoring for interactive aggregation on a per-node basis. The scoring approximates importance by degree-of-interest measures as well as screen and user-interaction scores. The technique adheres to established aggregation guidelines and was evaluated by means of two user studies. The first user study investigates task completion time in visual search. The second evaluates the readability of the presented nesting level contouring for aggregates. With the adaptive LoD technique software maps allow for multi-resolution depictions of software system information. It facilitates efficient identification of important nodes and allows for additional annotation.