by florian.prasse -

Evaluating a Master Thesis: Ender Özerdem

Ender Özerdem’s 2012 master’s thesis, Evaluating the Suitability of Web 2.0 Technologies for Online Atlas Access Interfaces, explores how participatory web features such as recommendations, user comments, and blogs can enhance online atlas usability. Through a prototype simulating an Austrian online atlas and usability testing with 30 participants, the study empirically assesses user reactions to these interactive elements. The results show that Web 2.0 functions can meaningfully improve user engagement and navigation, demonstrating both practical innovation and sound methodological execution.

Overview

Author: Ender Özerdem
Title: Evaluating the Suitability of Web 2.0 Technologies for Online Atlas Access Interfaces
Institution: Vienna University of Technology, Institute of Geoinformation and Cartography
Supervisors: Univ.-Prof. Dr. Georg Gartner; Dipl.-Ing. Felix Ortag
Year: 2012
Length: ~80 pages + appendices
Artifact: an interactive prototype of an online atlas of Austria (implemented as a clickable PDF simulating web interfaces) used for usability testing with 30 participants.

Structure:

  1. Introduction
  2. Basics
  3. Map access methods
  4. Web 2.0
  5. Empirical evaluation
  6. Results
  7. Conclusions

Evaluation

Overall Presentation Quality

The thesis is well-formatted and consistently structured, following scientific conventions. Figures, tables, and lists are clear and properly captioned. The bilingual abstract (English + German) is concise and accurately summarizes the aims, methods, and findings. Minor typographical inconsistencies exist but do not impede comprehension. Overall presentation quality is very good.

Degree of Innovation

The work tackles the novel (for 2012) question of how Web 2.0 interactivity—recommendations, comments, tag clouds, blogs, RSS—might enrich online atlases. This was a forward-looking intersection between cartography and web usability. The idea of combining usability testing with interactive atlas prototypes represents a meaningful contribution, though not groundbreaking at a theoretical level. The innovation lies primarily in applied integration of Web 2.0 principles into geographic interfaces.

Independence

Özerdem designed and executed the empirical evaluation, built the prototype interface, and conducted the usability tests autonomously. The methodological and implementation details indicate independent planning and execution under supervision. The inclusion of custom interface variants and a participant survey supports this.

Organization and Structure

The work is logically organized. Each chapter builds upon the previous: theoretical groundwork → analysis of existing systems → introduction of new technologies → empirical test → interpretation. The flow from problem statement to results is coherent. However, minor redundancies appear in the literature review (e.g., extended quotations from definitions).

Communication

The writing style is formal, clear, and mostly fluent. Definitions and literature are carefully integrated, though sentence structure occasionally reflects non-native phrasing. Visual materials (figures and screenshots) effectively support comprehension. Technical terminology is correctly used throughout.

Scope

The chosen topic, evaluating Web 2.0 features within online atlas interfaces, is handled with appropriate breadth and depth for a master’s level. The work balances theoretical exposition and empirical application effectively. The 70+ page length is proportional to the scope.

Accuracy and Attention to Detail

The text demonstrates careful referencing and accurate terminology in cartography and web technology. Tables and figures are labeled consistently. Only minor formatting inconsistencies (e.g., spacing, capitalization) occur. The methodology is described in enough detail to be replicable.

Literature

The literature review is broad and relevant, covering both classic cartographic sources (Bollmann & Koch; Kraak & Ormeling) and Web 2.0 theory (O’Reilly, 2005; Gartner, 2009). While comprehensive for its time, it lacks more recent (post-2010) empirical studies on user-generated mapping—an understandable limitation given the publication date. Citation style is consistent.

The Prototype

The prototype developed by Ender Özerdem effectively demonstrates the integration of Web 2.0 features, such as recommendations, user comments, and tag clouds, into an online atlas interface. Although implemented as a clickable PDF rather than a live web application, it is clearly structured, visually coherent, and sufficiently interactive for usability testing. The documentation provides detailed explanations of interface variants, user tasks, and testing procedures, ensuring transparency and reproducibility. Overall, the prototype successfully translates the thesis’s theoretical ideas into a practical, testable form and meets the expected standards of a master’s-level artifact.

Conclusion

In conclusion, Ender Özerdem’s Evaluating the Suitability of Web 2.0 Technologies for Online Atlas Access Interfaces (2012) is a well-structured and methodically robust thesis that effectively combines theoretical research with empirical testing. Despite the prototype’s limited technical scope and a modest sample size, the work shows strong independence, clear documentation, and valuable insights into enhancing online atlas interfaces through participatory web features. Overall, it demonstrates solid academic competence and practical innovation, meriting a ~2, 2+ evaluation.

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by cornelia.wysoudil -

#13 Combining Elevation, Floods, and Touch

After experimenting with spaghetti mountains and 1:10,000 land-consumption patches, I’ve found myself drawn toward a new direction – one that combines topography, climate data, and tactile experience into a single, tangible system. This post is about bringing those earlier experiments together under a more urgent, nationally relevant theme: flood risk in Austria.

Where I’m Coming From

So far, my prototypes have had one foot in playful material exploration and the other in physical data storytelling:

  • The Spaghetti Schlossberg turned abstract elevation data into a tactile mountain – wobbly and imperfect, but rich with potential.
  • The Land Use Patch made daily land consumption physically touchable, swapping colors for textures to communicate proportion, pressure, and permanence.

While they felt like separate ideas at first, both were really about the same thing: using touch to interpret spatial data in a more embodied way.

A Shift in Focus: Austria, Climate, and Tactile Maps

After researching climate impacts in Austria, especially the floods in 2024 in Vienna and Lower Austria, I began asking a new question:

What would it feel like to touch the places most vulnerable to climate risk?

This led me to the idea of creating a tactile flood risk map of Austria, combining elevation and flood zones into one cohesive, touchable landscape. The concept builds directly on what I’ve done so far: layering materials, mapping by hand, and treating texture as information.

Inspiration: Harrison Cole and Tactile Environmental Mapping

A major turning point came when I watched Harrison Cole’s video on tactile maps. His research for his phd shows how important carefully designed tactile maps are and how they can communicate both geographic and thematic information – not just where things are, but how they relate, change, and affect us.

Especially relevant were:

These examples helped me see that tactile design isn’t just about accessibility, but also about expanding the way everyone can perceive environmental risk – with their hands, not just their eyes.

What I’m Building Next

For my next prototype, I’m sketching out a physical map of Austria that shows both elevation and flood-prone areas. Here’s the plan:

  • Stacked cardboard or foam to build elevation in simplified contour layers.
  • Flood zones represented using sponge, felt, or soft rubber – anything that feels “wet” or absorbent.
  • Possibly include overlays from my land-use prototype (gravel, concrete, grass) to link impermeable surfaces to higher flood risk.

By combining these, I hope to answer:

  • Can we physically feel the risk tied to elevation and development?
  • How does texture communicate urgency or vulnerability better than visuals alone?
  • Could this be used in climate education or planning contexts?

Why Flood Risk?

Austria isn’t immune to climate impacts. The floods in Vienna and along the Danube aren’t isolated events. They’re part of a broader pattern of intensifying risks tied to both urban development and changing weather patterns.

A tactile map could:

  • Make climate data more accessible to visually impaired users.
  • Create a more memorable experience for general users.
  • Encourage reflection and conversation around geography, infrastructure, and preparedness.

Final Thoughts

What began as two strange lo-fi experiments have merged into something more purposeful. This third prototype will be a test of that synthesis: Can elevation, land use, and flood vulnerability live on the same board? Can they tell a story not just visually, but viscerally?

References & Links