Speaker: Shahar Maoz Title: Scenario-Based Trace Visualization and Exploration for Reactive Systems Authors: Shahar Maoz, Asaf Kleinbort, David Harel The Weizmann Institute of Science Abstract: We present preliminary work on a dynamic technique for the visualization and exploration of the execution traces of reactive systems. The input is a designer's inter-object scenario-based behavioral model, given as a set of UML2-compliant live sequence charts (LSC), and a scenario-based execution trace of the system. Our method allows one to visualize, and navigate through, the activation and progress of the scenarios given in the charts as they "come to life" during execution. Thus, we tie the visualization of system execution traces with model-driven design. Among other things, we support both event-based and real-time-based tracing, and use details-on-demand mechanisms, multi-scaling grids, and gradient coloring methods. We have implemented and tested our ideas in a prototype tool called the Tracer (see http://www.wisdom.weizmann.ac.il/~maozs/tracer/). The work was presented at VL/HCC 2007.