Here's a selection of possible bachelor and master topics. If you're interested in one of them, don't hesitate to contact us! We'll sit down, have tea, and talk about what we could do together.

Bachelor Topics

Diagram Layout

• Add Support for Self Loops for Polyline / Spline Layouts
  Self loops, that is, edges connecting a node with itself, need to be properly routed. This is already implemented for orthogonal edge routing, but is still an open problem for spline and polyline edge routing. (See ticket KIELER-2136.)
• Heuristics for Side Aware Edge Label Placement
  Think about and implement heuristic algorithms for solving the edge aware edge label placement problem for placing edge labels in data flow diagrams.
• Implement Greedy Switch Heuristic for Crossing Minimization
  The order of nodes in a layer determines the number of crossings and is computed during the crossing minimization step. The results can usually be further improved by switching the order of nodes around, which we currently lack proper algorithms for. (See ticket KIELER-1871)
• Layering Algorithms
  Implement an alternative algorithm for the layer assignment problem used in the layer-based approach to graph layout.

Modeling Pragmatics

• Control Flow Graph Exploration / Visualization
  Use pragmatics concepts (automatic layout, focus & context) for exploring/visualizing control flow graphs and specific paths, eg. as computed by OTAWA WCET analysis tool, eg. using Klighd.
• Incremental Update for Klighd
  Incremental update of Klighd data structure after editing.
• OMG DD Format
  Explore the mapping of KGraph / KRendering to the Diagram Definition format of the OMG.
• SyncCharts and Actor Model Visualization
  Develop an integrated viewer for SyncCharts and KAOM models using KLighD, including view management techniques such as focus & context and structure-based editing.
• Visualizing Model Edits/Changes
  Develop and implement methods to visualize a model while it is edited. A particular concern here is the preservation of the mental map.

Semantics and Synchronous Languages

• Validation Manager for Models
  Develop an integrated, flexible and generic syntactic validation framework for models (e.g. Esterel or SyncCharts).
• Esterel / SyncCharts Validation
  Automate the validation for a (generic) SyncCharts simulator employing the Esterel simulator and the Esterel to SyncCharts transformation.
• Transformation from SyncCharts to Esterel [possibly also Master Topic]
  Develop a transformation in Xtend2 to generate Esterel code for SyncCharts.

Miscellaneous Topics

• Developing an Info Screen
  Info screens are screens that present data in ways that can be easily understood. This includes static data (project description graphics, members of a team, ...) as well as dynamically aggregated data (bug statistics, automatic build overviews, ...). This topic is about developing such an info screen for our group and making it easily configurable.

Master Topics

• SyncCharts in Yakindu
  Develop a SyncChart-Editor based on Yakindu, including basic pragmatics concept (automatic layout, collapse/expand, structure-based editing) and interfacing to host-language.
• FPGA Statecharts
  Development of a Statecharts editor, based on .NET, WPF, MS Silverlight. Synthesis onto FPGAs with a data-flow-based intermediate format.
• Diagram Description Language
  Developing the concepts and implementation of a diagram description language based on Klighd, with SyncCharts as application example.
• [Quartz]
  Integrate the synchronous Quartz language into KIELER for validation purposes and teaching.