Visual Composition and Exploration of Financial Dataflows

Information

• Publication Type: Bachelor Thesis
• Workgroup(s)/Project(s):
  • Visualization Group
• Date: April 2026
• Date (Start): August 2025
• Date (End): April 2026
• Matrikelnummer: 12024732
• First Supervisor: Manuela Waldner

Abstract

This thesis investigates how interactive visualization techniques can improve transparency in node-based editors for financial time-series data. Existing tools in this domain support workflow construction but provide limited means for inspecting intermediate values or tracing dataflow through a processing pipeline. Following a Data–Users– Tasks design triangle, the work derives seven design requirements from the literature and implements them in a web-based node-based editor. The system provides nodelevel probes for intermediate-state inspection, coordinated graph and chart views with color-coded linking, execution-based dataflow highlighting, and integrated backtesting visualization. A case study using a moving average crossover workflow demonstrates the system in operation. The results show that for static, fully visible time-series data, temporal scrubbing provides no benefit over direct crosshair navigation, contrasting with reactive visualization systems where timeline replay is necessary. Persistent color encoding replaces interactive brushing-and-linking, and user-controlled layout flexibility supports both superposition and juxtaposition depending on the inspection task.

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BibTeX

@bachelorsthesis{rozana-2026-vcfd,
  title =      "Visual Composition and Exploration of Financial Dataflows",
  author =     "Filip Rozana",
  year =       "2026",
  abstract =   "This thesis investigates how interactive visualization
               techniques can improve transparency in node-based editors
               for financial time-series data. Existing tools in this
               domain support workflow construction but provide limited
               means for inspecting intermediate values or tracing dataflow
               through a processing pipeline. Following a Data–Users–
               Tasks design triangle, the work derives seven design
               requirements from the literature and implements them in a
               web-based node-based editor. The system provides nodelevel
               probes for intermediate-state inspection, coordinated graph
               and chart views with color-coded linking, execution-based
               dataflow highlighting, and integrated backtesting
               visualization. A case study using a moving average crossover
               workflow demonstrates the system in operation. The results
               show that for static, fully visible time-series data,
               temporal scrubbing provides no benefit over direct crosshair
               navigation, contrasting with reactive visualization systems
               where timeline replay is necessary. Persistent color
               encoding replaces interactive brushing-and-linking, and
               user-controlled layout flexibility supports both
               superposition and juxtaposition depending on the inspection
               task.",
  month =      apr,
  address =    "Favoritenstrasse 9-11/E193-02, A-1040 Vienna, Austria",
  school =     "Research Unit of Computer Graphics, Institute of Visual
               Computing and Human-Centered Technology, Faculty of
               Informatics, TU Wien ",
  URL =        "https://www.cg.tuwien.ac.at/research/publications/2026/rozana-2026-vcfd/",
}