Supplementary dataset: Structural Convergence in GenAI-Assisted Interface Prototyping (pilot corpus)

Supplementary materials for the exploratory pilot study reported in: Xikota, T. K. C.; Azonnoudo, S. F. D. E.; Teixeira, J. M.; Böhm, S. "Structural convergence in AI-generated media: how specification literacy moderates homogenization in GenAI-assisted interface design". AIMEDIA 2026 (The Second International Conference on AI-based Media Innovation), Nice, France. IARIA, 2026, pp. 96-104. ISBN 978-1-68558-403-0. The dataset contains: the verbatim design brief (Portuguese and English); the verbatim prompts and self-reported rationales of the five expert designers, plus one excluded respondent; anonymized survey responses; full-frame screenshots of the ten interface prototypes generated in Figma Make (five unmediated baseline runs and five designer-mediated) on 28-29 March 2026; the structural convergence codebook fixed before coding (four ordinal dimensions); and the post-consensus scores per output and dimension, as published in the paper. This deposit also serves as the verifiable supplementary reference for follow-up analyses of the same corpus by the research group. See README.md for contents, caveats and anonymization notes. No personal identifiers were collected. License: CC BY 4.0.