Decision Support and Group Support Systems

Decision support and group support systems encompass interactive software and procedural frameworks designed to aid individuals and teams in analysing complex problems, exploring alternatives and arriving at well-informed choices. By integrating data management, analytical models and collaborative interfaces, these systems accommodate both quantitative and qualitative inputs—ranging from time-series records or sensor streams to expert assessments and stakeholder preferences. Core functions include scenario simulation, multicriteria evaluation, consensus building and risk analysis. Modern platforms extend traditional desktop solutions to web- and mobile-based environments, facilitating anywhere/anytime access and real-time collaboration. Advances in fuzzy logic, evidence theory and machine-learning methods have enhanced the ability of decision support tools to handle ambiguity, adapt to evolving contexts and guide group deliberations toward transparent, participative and efficient outcomes.

Research from Nature Portfolio

A new study has embedded spherical hesitant fuzzy soft aggregation operators into the EDAS (Evaluation based on Distance from Average Solution) framework to tackle emergency-aid supply decisions, demonstrating how these aggregation functions refine uncertainty modelling and deliver robust ranking of post-disaster interventions. Another global synthesis of 80 field experiments revealed that model-based decision support systems for scheduling fungicide sprays can halve chemical inputs without sacrificing control efficacy, underscoring the practical impact of risk-based algorithms for sustainable crop protection across diverse agro-ecosystems.

Research from all publishers

A fuzzy DEMATEL (Decision Making Trial and Evaluation Laboratory) framework was applied to human-resource challenges in start-up companies, revealing key causal factors and enabling managers to prioritise interventions under subjective expert assessments. In the automotive domain, a combined DEMATEL and fuzzy DEMATEL approach mapped the interactions between functional safety and cybersecurity management systems in highly automated vehicles, offering a visual influence network to guide integrated system design. Meanwhile, a state-of-the-art survey of the EDAS multicriteria evaluation method has charted its extensions and applications across agriculture, energy, healthcare and supply-chain management, providing practitioners with insights on handling incomplete information and stakeholder preferences through distance-based ranking.

Decision Support and Group Support Systems publication trend

The graph below shows the total number of articles in decision support and group support systems across all publications each year (not limited to Nature Index journals).

Technical terms

Decision support system (DSS): An interactive software platform that integrates data, models and user interfaces to assist individuals or groups in complex decision tasks.

Multicriteria decision analysis (MCDA): A family of methods for evaluating and ranking alternatives based on multiple, often conflicting criteria.

EDAS (Evaluation based on Distance from Average Solution): A multicriteria ranking technique that assesses alternatives by measuring their distances from an average attribute performance.

DEMATEL (Decision Making Trial and Evaluation Laboratory): A network-based method that identifies and quantifies cause-effect relationships among criteria.

Fuzzy logic: A mathematical framework allowing variables to have degrees of truth between 0 and 1 to model vagueness and imprecision.

Spherical hesitant fuzzy set: A fuzzy-logic extension permitting multiple membership degrees under a geometric constraint, enhancing uncertainty modelling.

References

1. A fuzzy DEMATEL decision modeling framework for identifying key human resources challenges in start-up companies: Implications for sustainable development. Decision Analytics Journal (2023).
2. An application of DEMATEL and fuzzy DEMATEL to evaluate the interaction of safety management system and cybersecurity management system in automated vehicles. Engineering Applications of Artificial Intelligence (2023).
3. A state-of-the-art survey of evaluation based on distance from average solution (EDAS): Developments and applications. Expert Systems with Applications (2023).
4. A model for emergency supply management under extended EDAS method and spherical hesitant fuzzy soft aggregation information. Scientific Reports (2023).
5. Decision support systems halve fungicide use compared to calendar-based strategies without increasing disease risk. Communications Earth & Environment (2021).