This impulse came from three separate mentoring conversations about my master’s thesis: first with Ursula Lagger, then with Horst Hörtner, and finally with Martin Kaltenbrunner. All three liked the core idea of using AR and IoT to enhance retail experiences, but each of them pushed me in a different direction. Together, these talks turned my project from a vague vision into something that needs concrete methods, business relevance and technical depth.
Focusing The Thesis With Ursula Lagger
My first conversation was with Ursula Lagger about my master’s expose. It was less about judging the idea and more about shaping it into a strong research plan. She encouraged me to keep the main concept, but to put much more emphasis on how I am going to test it with users. That meant not just saying “I will do user studies”, but being specific. Who are the participants, what scenarios will I test, which tasks will they perform, and how exactly will I collect and evaluate their feedback.
She also stressed that the written proposal should already show this depth. Instead of broad, generic goals, she wants to see clearly defined outcomes and methods. That feedback was very practical. It pushed me to rewrite sections of the proposal from high level ambition into detailed steps. For example, instead of “evaluate AR navigation in a store”, I now think in terms of concrete studies like “observe how long users take to find an item with and without AR guidance” or “measure perceived stress in crowded environments”.
Business And Social Perspective With Horst Hörtner
The conversation with Horst Hörtner brought in a different layer. He was positive about the topic and said it fits well with current technological developments, but he also pointed out that some of my scenarios are ahead of what is easily deployable today. Rather than seeing that as a problem, he framed it as a chance to think strategically.
From a business perspective, he recommended focusing on locations where the investment in AR and IoT can realistically pay off. That means contexts with higher margins or clear efficiency gains, where companies can justify installing such systems and maintaining them. Further mentioning trying to make something that will benefit not businesses but humanity. I now try to frame each concept both in terms of value for businesses and in terms of concrete benefits for humanity, not just for “tech fans”.
Technical And Methodological Depth With Martin Kaltenbrunner
With Martin Kaltenbrunner the discussion went into the technical and methodological details. He also liked the idea, but he was skeptical mentioning how trends come and go. He mentioned to look for already existing products that we might have in our phone. Additionally, his main question was: how exactly will this research play out in practice. Are there going to be physical prototypes, how will people interact with them, which tools and environments will I use.
He asked for more depth in the user research plan. Which classes or groups could participate in early tests, what kind of app or prototype will I build first, in which settings will the studies take place, and how many iterations I am planning. This made me realise that I need a clearer roadmap from first low fidelity mockups to more realistic prototypes. He also suggested concrete technical options, like building simple interactive shelves or objects with Arduino and available hardware, instead of keeping everything purely conceptual. That was encouraging, because it connected my ideas to components that are actually available in our labs.
AI Disclaimer
This blog post was polished with the assistance of AI.



