Knowledge Base Repository

In addition to research papers, the Design Society is developing several valuable resources for those interested in the study of design. These include a repository of PhD theses, a library of case studies and transcripts of design activities, and an archive of our newsletters. Please note that these resources are accessible exclusively to Design Society members.

LLM-based voice chatbot surveys as an alternative to post-experience questionnaires: probe-controlled, ultra-short field interviews

Ding, Fujian; Taoka, Yuki; Nakatani, Momoko


Type:
Year:
2026
Editor:
Štorga, M.; Škec, S.; Martinec, T.; Marjanović, D.; Pavković, N.
Author:
Series:
DESIGN
Institution:
Institute of Science Tokyo, Japan
Page(s):
2253-2262
DOI number:
ISSN:
2732-527X (Online)
Abstract:
Chatbot-based surveys offer low-burden, in-situ data collection, yet unconstrained LLMs often drift from research aims. We conducted 359 ultra-short, post-experience voice interviews in a public venue to compare a framework-guided LLM, an unconstrained LLM, and fixed questions. The guided approach produced significantly longer responses than fixed questions and yielded the richest diversity of process-specific accounts. These findings show that probe control is essential for eliciting actionable, experience-grounded feedback in real-world, time-limited settings.
Keywords:

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