Cognitive Modeling of User Interaction in Multi‑Role Web Applications with 3D Functionality
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Abstract
The article investigates cognitive load in users of a multi-role 3D platform. An experiment (71 participants: 34 designers, 37 customers; 639 observations) using objective metrics and subjective scales revealed different load profiles: designers are slowed down by data entry forms, while customers are hindered by 3D content. Based on 34 problem areas, seven interface design principles and a task classification by cognitive complexity level, accounting for role-specific factors, were formulated. Retesting (21 participants) confirmed their effectiveness: task completion time decreased by 21–28%, errors by 33–44%, frustration by 25–35%, and the use of 3D features increased from 40.5% to 90.9%. The developed three-component model (taxonomic, diagnostic, and design levels) is recommended for designing similar multi-role platforms with 3D functionality.
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References
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