Decision Making Support
Effective group decision-making is critical but group decisions are often slow, biased, or dominated by a few voices. Our research focuses on decision-making support tools that enhance collaboration, reduce bias, and ensure every perspective is heard.
Check our publications for prior projects in this research topic.
Current Leading Members
Mahsan Abdoli
Ph.D. Student
Building a Taxonomy for Focal Areas and Evaluation Criteria of Group Decision-Making Support Tools
Group decision-making is a complex and multifaceted area of research spanning diverse domains, technologies, and methodological traditions. Despite growing interest in collaborative systems, prior literature reviews have typically focused on narrow contexts, specific tools, or isolated decision environments. This fragmentation makes it difficult to understand the broader landscape of how technology mediates group decision processes.
To address this gap, we conducted a systematic literature review of 55 HCI publications from 2015 to 2024 that examine technology-supported group decision-making across varied application domains and settings. Through qualitative synthesis and comparative analysis, we developed a taxonomy that characterizes three core dimensions of the field: (1) the types of group decision-making tasks studied, (2) the primary research focal areas addressed by prior work, and (3) the evaluation criteria used to assess collaborative technologies. We then analyzed how these dimensions intersect across studies to identify dominant patterns, recurring assumptions, and underexplored tensions.
This work contributes a structured conceptual map of the research landscape, highlighting gaps in current technological support for group processes. The taxonomy provides researchers and designers with a foundation for positioning new work, identifying opportunities for innovation, and advancing more coherent development of tools that support collective reasoning and collaborative decision-making.